A cover in foreign , military or police human intelligence or counterintelligence is the ostensible identity and/or role or position in an infiltrated organization assumed by a covert agent during a covert operation .
98-408: In espionage , an official cover operative is one who assumes a position in an organization with diplomatic ties to the government for which the operative works such as an embassy or consulate. This provides the agent with official diplomatic immunity , thus protecting them from the steep punishments normally meted out to captured spies. Upon discovery of an official cover agent's secret hostile role,
196-427: A NOC (pronounced / n ɒ k / NOK ) or as an illegal (see Clandestine HUMINT operational techniques ). Sometimes, front companies or strawman entities are established in order to provide false identities for agents. An agent sent to spy on a foreign country might, for instance, work as a businessperson, a worker for a non-profit organization (such as a humanitarian group), or an academic. For example,
294-467: A 12-digit Standard Book Number of 345-24223-8-595 (valid SBN: 345-24223-8, ISBN: 0-345-24223-8), and it cost US$ 5.95 . Since 1 January 2007, ISBNs have contained thirteen digits, a format that is compatible with " Bookland " European Article Numbers , which have 13 digits. Since 2016, ISBNs have also been used to identify mobile games by China's Administration of Press and Publication . The United States , with 3.9 million registered ISBNs in 2020,
392-583: A central role in war as well as peace was first advanced in The Art of War and in the Arthashastra . In the Middle Ages European states excelled at what has later been termed counter- subversion when Catholic inquisitions were staged to annihilate heresy . Inquisitions were marked by centrally organised mass interrogations and detailed record keeping. Western espionage changed fundamentally during
490-628: A combination of the two." However, espionage and intelligence can be linked. According to the MI5 website, "foreign intelligence officers acting in the UK under diplomatic cover may enjoy immunity from prosecution. Such persons can only be tried for spying (or, indeed, any criminal offence) if diplomatic immunity is waived beforehand. Those officers operating without diplomatic cover have no such immunity from prosecution". There are also laws surrounding government and organisational intelligence and surveillance. Generally,
588-661: A disguised spy and a disguised escaper. It is permissible for these groups to wear enemy uniforms or civilian clothes in order to facilitate their escape back to friendly lines so long as they do not attack enemy forces, collect military intelligence, or engage in similar military operations while so disguised. Soldiers who are wearing enemy uniforms or civilian clothes simply for the sake of warmth along with other purposes rather than engaging in espionage or similar military operations while so attired are also excluded from being treated as unlawful combatants. Saboteurs are treated as spies as they too wear disguises behind enemy lines for
686-469: A fictionalized autobiography (as per British law) entitled NOC: Non-Official Cover: British Secret Operations , and two sequels: NOC Twice: More UK Non-Official Cover Operations and NOC Three Times: Knock-On Effect (Last of the Trilogy) . Michael Ross , a former Mossad officer, operated as a Mossad NOC or "combatant" as described in his memoir, The Volunteer: The Incredible True Story of an Israeli Spy on
784-451: A form of gentlemen's agreement . Some countries have regulations regarding the use of non-official cover: the CIA, for example, has at times been prohibited from disguising agents as members of certain aid organizations, or as members of the clergy . The degree of sophistication put into non-official cover stories varies considerably. Sometimes, an agent will simply be appointed to a position in
882-447: A given ISBN is complicated, because most of the parts do not use a fixed number of digits. ISBN issuance is country-specific, in that ISBNs are issued by the ISBN registration agency that is responsible for that country or territory regardless of the publication language. The ranges of ISBNs assigned to any particular country are based on the publishing profile of the country concerned, and so
980-651: A prison sentence until his death in 2023. Espionage laws are also used to prosecute non-spies. In the United States, the Espionage Act of 1917 was used against socialist politician Eugene V. Debs (at that time the Act had much stricter guidelines and amongst other things banned speech against military recruiting). The law was later used to suppress publication of periodicals, for example of Father Coughlin in World War II . In
1078-483: A prisoner of war. This provision does not apply to citizens who committed treason against their own country or co-belligerents of that country and may be captured and prosecuted at any place or any time regardless whether he rejoined the military to which he belongs or not or during or after the war. The ones that are excluded from being treated as spies while behind enemy lines are escaping prisoners of war and downed airmen as international law distinguishes between
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#17328949340231176-458: A simple reprinting of an existing item. For example, an e-book , a paperback and a hardcover edition of the same book must each have a different ISBN, but an unchanged reprint of the hardcover edition keeps the same ISBN. The ISBN is ten digits long if assigned before 2007, and thirteen digits long if assigned on or after 1 January 2007. The method of assigning an ISBN is nation-specific and varies between countries, often depending on how large
1274-401: A systematic pattern, which allows their length to be determined, as follows: A check digit is a form of redundancy check used for error detection , the decimal equivalent of a binary check bit . It consists of a single digit computed from the other digits in the number. The method for the 10-digit ISBN is an extension of that for SBNs, so the two systems are compatible; an SBN prefixed with
1372-582: A theory of espionage foreshadowing modern police-state methods. During the American Revolution , Nathan Hale and Benedict Arnold achieved their fame as spies, and there was considerable use of spies on both sides during the American Civil War . Though not a spy himself, George Washington was America's first spymaster, utilizing espionage tactics against the British. In the 20th century, at
1470-612: A well-established company which can provide the appropriate opportunities. Other times, entire front companies can be established in order to provide false identities for agents. Examples include Air America , used by the CIA during the Vietnam War, and Brewster Jennings & Associates , used by the CIA in WMD investigations and made public as a result of the Plame affair . Former MI6 officer "Nicholas Anderson" wrote an account of his service in
1568-458: A zero (the 10-digit ISBN) will give the same check digit as the SBN without the zero. The check digit is base eleven, and can be an integer between 0 and 9, or an 'X'. The system for 13-digit ISBNs is not compatible with SBNs and will, in general, give a different check digit from the corresponding 10-digit ISBN, so does not provide the same protection against transposition. This is because the 13-digit code
1666-560: A zero to a 9-digit SBN creates a valid 10-digit ISBN. The national ISBN agency assigns the registrant element ( cf. Category:ISBN agencies ) and an accompanying series of ISBNs within that registrant element to the publisher; the publisher then allocates one of the ISBNs to each of its books. In most countries, a book publisher is not legally required to assign an ISBN, although most large bookstores only handle publications that have ISBNs assigned to them. The International ISBN Agency maintains
1764-519: A zero). Privately published books sometimes appear without an ISBN. The International ISBN Agency sometimes assigns ISBNs to such books on its own initiative. A separate identifier code of a similar kind, the International Standard Serial Number (ISSN), identifies periodical publications such as magazines and newspapers . The International Standard Music Number (ISMN) covers musical scores . The Standard Book Number (SBN)
1862-474: Is 7, and the complete sequence is ISBN 978-0-306-40615-7. In general, the ISBN check digit is calculated as follows. Let Then This check system—similar to the UPC check digit formula—does not catch all errors of adjacent digit transposition. Specifically, if the difference between two adjacent digits is 5, the check digit will not catch their transposition. For instance, the above example allows this situation with
1960-469: Is a commercial system using nine-digit code numbers to identify books. In 1965, British bookseller and stationers WHSmith announced plans to implement a standard numbering system for its books. They hired consultants to work on their behalf, and the system was devised by Gordon Foster , emeritus professor of statistics at Trinity College Dublin . The International Organization for Standardization (ISO) Technical Committee on Documentation sought to adapt
2058-400: Is a multiple of 11. That is, if x i is the i th digit, then x 10 must be chosen such that: For example, for an ISBN-10 of 0-306-40615-2: Formally, using modular arithmetic , this is rendered It is also true for ISBN-10s that the sum of all ten digits, each multiplied by its weight in ascending order from 1 to 10, is a multiple of 11. For this example: Formally, this
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#17328949340232156-440: Is also employed for an individual who is not an illegal agent, but is an ordinary citizen who is "relocated", for example, a "protected witness". Nevertheless, such a non-agent very likely will also have a case officer who will act as a controller. As in most, if not all synthetic identity schemes, for whatever purpose (illegal or legal), the assistance of a controller is required. Spies may also be used to spread disinformation in
2254-410: Is always directed at the most secret operations of a target country. National and terrorist organizations and other groups are also targeted. This is because governments want to retrieve information that they can use to be proactive in protecting their nation from potential terrorist attacks. Communications both are necessary to espionage and clandestine operations , and also a great vulnerability when
2352-492: Is available on the International ISBN Agency website. A list for a few countries is given below: The ISBN registration group element is a 1-to-5-digit number that is valid within a single prefix element (i.e. one of 978 or 979), and can be separated between hyphens, such as "978-1-..." . Registration groups have primarily been allocated within the 978 prefix element. The single-digit registration groups within
2450-443: Is considered espionage. Many HUMINT activities, such as prisoner interrogation , reports from military reconnaissance patrols and from diplomats, etc., are not considered espionage. Espionage is the disclosure of sensitive information (classified) to people who are not cleared for that information or access to that sensitive information. Unlike other forms of intelligence collection disciplines , espionage usually involves accessing
2548-548: Is considered permissible as many nations recognize the inevitability of opposing sides seeking intelligence each about the dispositions of the other. To make the mission easier and successful, combatants wear disguises to conceal their true identity from the enemy while penetrating enemy lines for intelligence gathering. However, if they are caught behind enemy lines in disguises, they are not entitled to prisoner-of-war status and subject to prosecution and punishment—including execution . The Hague Convention of 1907 addresses
2646-399: Is more common usage. A case officer or Special Agent , who may have diplomatic status (i.e., official cover or non-official cover ), supports and directs the human collector. Cut-outs are couriers who do not know the agent or case officer but transfer messages. A safe house is a refuge for spies. Spies often seek to obtain secret information from another source. In larger networks,
2744-402: Is not needed, but it may be considered to simplify the calculation.) For example, the check digit for the ISBN of 0-306-40615- ? is calculated as follows: Thus the check digit is 2. It is possible to avoid the multiplications in a software implementation by using two accumulators. Repeatedly adding t into s computes the necessary multiples: The modular reduction can be done once at
2842-414: Is rendered The two most common errors in handling an ISBN (e.g. when typing it or writing it down) are a single altered digit or the transposition of adjacent digits. It can be proven mathematically that all pairs of valid ISBN-10s differ in at least two digits. It can also be proven that there are no pairs of valid ISBN-10s with eight identical digits and two transposed digits (these proofs are true because
2940-534: Is the person who does the spying. They may be a citizen of a country recruited by that country to spy on another; a citizen of a country recruited by that country to carry out false flag assignments disrupting his own country; a citizen of one country who is recruited by a second country to spy on or work against his own country or a third country, and more. In popular usage, this term is sometimes confused with an intelligence officer , intelligence operative , or case officer who recruits and handles agents. Among
3038-687: Is very much distinct from espionage, and is not illegal in the UK, providing that the organisations of individuals are registered, often with the ICO, and are acting within the restrictions of the Regulation of Investigatory Powers Act (RIPA). 'Intelligence' is considered legally as "information of all sorts gathered by a government or organisation to guide its decisions. It includes information that may be both public and private, obtained from much different public or secret sources. It could consist entirely of information from either publicly available or secret sources, or be
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3136-607: The American Zone of occupied Germany . The U.S. codification of enemy spies is Article 106 of the Uniform Code of Military Justice . This provides a mandatory death sentence if a person captured in the act is proven to be "lurking as a spy or acting as a spy in or about any place, vessel, or aircraft, within the control or jurisdiction of any of the armed forces, or in or about any shipyard, any manufacturing or industrial plant, or any other place or institution engaged in work in aid of
3234-564: The CIA 's Ishmael Jones spent nearly two decades as a NOC. Many of the agents memorialized without names or dates of service on the CIA Memorial Wall are assumed to have been killed or executed in a foreign country while serving as NOC agents. In nations with established and well-developed spy agencies, the majority of captured non-native NOC agents have, however, historically been repatriated through prisoner exchanges for other captured NOCs as
3332-738: The Office of Strategic Services was founded by Gen. William J. Donovan . However, the British system was the keystone of Allied intelligence. Numerous resistance groups such as the Austrian Maier -Messner Group, the French Resistance , the Witte Brigade , Milorg and the Polish Home Army worked against Nazi Germany and provided the Allied secret services with information that was very important for
3430-637: The Uniform Code of Military Justice . The United States, like most nations, conducts espionage against other nations, under the control of the National Clandestine Service . Britain's espionage activities are controlled by the Secret Intelligence Service . Source: A spy is a person employed to seek out top secret information from a source. Within the United States Intelligence Community , " asset "
3528-648: The Vietnam War . Some Islamic countries, including Libya , Iran and Syria , have highly developed operations as well. SAVAK , the secret police of the Pahlavi dynasty , was particularly feared by Iranian dissidents before the 1979 Iranian Revolution . Today, spy agencies target the illegal drug trade and terrorists as well as state actors. Intelligence services value certain intelligence collection techniques over others. The former Soviet Union, for example, preferred human sources over research in open sources , while
3626-441: The death penalty . Venice became obsessed with espionage because successful international trade demanded that the city-state could protect its trade secrets . Under Queen Elizabeth I of England ( r. 1558–1603 ), Francis Walsingham ( c. 1532–1590) was appointed foreign secretary and intelligence chief. The novelist and journalist Daniel Defoe (died 1731) not only spied for the British government, but also developed
3724-415: The publisher , "01381" is the serial number assigned by the publisher, and "8" is the check digit . By prefixing a zero, this can be converted to ISBN 0-340-01381-8 ; the check digit does not need to be re-calculated. Some publishers, such as Ballantine Books , would sometimes use 12-digit SBNs where the last three digits indicated the price of the book; for example, Woodstock Handmade Houses had
3822-448: The 13-digit ISBN, as follows: A 13-digit ISBN can be separated into its parts ( prefix element , registration group , registrant , publication and check digit ), and when this is done it is customary to separate the parts with hyphens or spaces. Separating the parts ( registration group , registrant , publication and check digit ) of a 10-digit ISBN is also done with either hyphens or spaces. Figuring out how to correctly separate
3920-544: The 1947 National Security Act created the Central Intelligence Agency (CIA) to coordinate intelligence and the National Security Agency for research into codes and electronic communication. In addition to these, the United States has 13 other intelligence gathering agencies; most of the U.S. expenditures for intelligence gathering are budgeted to various Defense Dept. agencies and their programs. Under
4018-432: The 6 followed by a 1. The correct order contributes 3 × 6 + 1 × 1 = 19 to the sum; while, if the digits are transposed (1 followed by a 6), the contribution of those two digits will be 3 × 1 + 1 × 6 = 9 . However, 19 and 9 are congruent modulo 10, and so produce the same, final result: both ISBNs will have a check digit of 7. The ISBN-10 formula uses the prime modulus 11 which avoids this blind spot, but requires more than
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4116-473: The 978-prefix element are: 0 or 1 for English-speaking countries; 2 for French-speaking countries; 3 for German-speaking countries; 4 for Japan; 5 for Russian-speaking countries; and 7 for People's Republic of China. Example 5-digit registration groups are 99936 and 99980, for Bhutan. The allocated registration groups are: 0–5, 600–631, 65, 7, 80–94, 950–989, 9910–9989, and 99901–99993. Books published in rare languages typically have longer group elements. Within
4214-515: The 979 prefix element, the registration group 0 is reserved for compatibility with International Standard Music Numbers (ISMNs), but such material is not actually assigned an ISBN. The registration groups within prefix element 979 that have been assigned are 8 for the United States of America, 10 for France, 11 for the Republic of Korea, and 12 for Italy. The original 9-digit standard book number (SBN) had no registration group identifier, but prefixing
4312-605: The British SBN for international use. The ISBN identification format was conceived in 1967 in the United Kingdom by David Whitaker (regarded as the "Father of the ISBN") and in 1968 in the United States by Emery Koltay (who later became director of the U.S. ISBN agency R. R. Bowker ). The 10-digit ISBN format was developed by the ISO and was published in 1970 as international standard ISO 2108. The United Kingdom continued to use
4410-650: The Hague Convention of 1907, these Germans were classified as spies and tried by a military tribunal in Washington D.C. On August 3, 1942, all eight were found guilty and sentenced to death. Five days later, six were executed by electric chair at the District of Columbia jail. Two who had given evidence against the others had their sentences reduced by President Franklin D. Roosevelt to prison terms. In 1948, they were released by President Harry S. Truman and deported to
4508-416: The ISBN is less than eleven digits long and because 11 is a prime number ). The ISBN check digit method therefore ensures that it will always be possible to detect these two most common types of error, i.e., if either of these types of error has occurred, the result will never be a valid ISBN—the sum of the digits multiplied by their weights will never be a multiple of 11. However, if the error were to occur in
4606-640: The Renaissance when Italian city-states installed resident ambassadors in capital cities to collect intelligence. Renaissance Venice became so obsessed with espionage that the Council of Ten , which was nominally responsible for security , did not even allow the doge to consult government archives freely. In 1481 the Council of Ten barred all Venetian government officials from making contact with ambassadors or foreigners. Those revealing official secrets could face
4704-802: The Soviet Union for the CIA, was shot down and captured. During the Cold War, many Soviet intelligence officials defected to the West, including Gen. Walter Krivitsky , Victor Kravchenko , Vladimir Petrov , Peter Deriabin, Pawel Monat and Oleg Penkovsky of the GRU . Among Western officials who defected to the Soviet Union are Guy Burgess and Donald D. Maclean of Great Britain in 1951, Otto John of West Germany in 1954, William H. Martin and Bernon F. Mitchell , U.S. cryptographers, in 1960, and Harold (Kim) Philby of Great Britain in 1962. U.S. acknowledgment of its U-2 flights and
4802-539: The Trail of International Terrorists (Skyhorse Publishing, September 2007, ISBN 978-1-60239-132-1 ). Fictional notable examples include Chuck Barris , who made a satirical claim to have been a NOC with 33 kills in his book and movie Confessions of a Dangerous Mind . Other examples are featured in the books Debt of Honor and The Eleventh Commandment ; the films Mission: Impossible , Spy Game , The Bourne Identity , Safe House , and The Recruit ; and
4900-594: The United States and some other jurisdictions can only occur if they take up arms or aids the enemy against their own country during wartime), or even executed, as the Rosenbergs were. For example, when Aldrich Ames handed a stack of dossiers of U.S. Central Intelligence Agency (CIA) agents in the Eastern Bloc to his KGB-officer "handler", the KGB "rolled up" several networks, and at least ten people were secretly shot. When Ames
4998-437: The United States has tended to emphasize technological methods such as SIGINT and IMINT . In the Soviet Union, both political ( KGB ) and military intelligence ( GRU ) officers were judged by the number of agents they recruited. Espionage agents are usually trained experts in a targeted field so they can differentiate mundane information from targets of value to their own organizational development. Correct identification of
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#17328949340235096-421: The adversary has sophisticated SIGINT detection and interception capability. Spies rely on COVCOM or covert communication through technically advanced spy devices. Agents must also transfer money securely. Reportedly Canada is losing $ 12 billion and German companies are estimated to be losing about €50 billion ($ 87 billion) and 30,000 jobs to industrial espionage every year. In espionage jargon, an "agent"
5194-657: The allocations of ISBNs that they make to publishers. For example, a large publisher may be given a block of ISBNs where fewer digits are allocated for the registrant element and many digits are allocated for the publication element; likewise, countries publishing many titles have few allocated digits for the registration group identifier and many for the registrant and publication elements. Here are some sample ISBN-10 codes, illustrating block length variations. English-language registration group elements are 0 and 1 (2 of more than 220 registration group elements). These two registration group elements are divided into registrant elements in
5292-564: The body involved should be issued with some form of warrant or permission from the government and should be enacting their procedures in the interest of protecting national security or the safety of public citizens. Those carrying out intelligence missions should act within not only RIPA but also the Data Protection Act and Human Rights Act. However, there are spy equipment laws and legal requirements around intelligence methods that vary for each form of intelligence enacted. In war, espionage
5390-461: The check digit itself). Each digit, from left to right, is alternately multiplied by 1 or 3, then those products are summed modulo 10 to give a value ranging from 0 to 9. Subtracted from 10, that leaves a result from 1 to 10. A zero replaces a ten, so, in all cases, a single check digit results. For example, the ISBN-13 check digit of 978-0-306-40615- ? is calculated as follows: Thus, the check digit
5488-419: The check digit must equal either 0 or 11. Therefore, the check digit is (11 minus the remainder of the sum of the products modulo 11) modulo 11. Taking the remainder modulo 11 a second time accounts for the possibility that the first remainder is 0. Without the second modulo operation, the calculation could result in a check digit value of 11 − 0 = 11 , which is invalid. (Strictly speaking, the first "modulo 11"
5586-411: The complete sequence is ISBN 0-306-40615-2. If the value of x 10 {\displaystyle x_{10}} required to satisfy this condition is 10, then an 'X' should be used. Alternatively, modular arithmetic is convenient for calculating the check digit using modulus 11. The remainder of this sum when it is divided by 11 (i.e. its value modulo 11), is computed. This remainder plus
5684-471: The details of over one million ISBN prefixes and publishers in the Global Register of Publishers . This database is freely searchable over the internet. Publishers receive blocks of ISBNs, with larger blocks allotted to publishers expecting to need them; a small publisher may receive ISBNs of one or more digits for the registration group identifier, several digits for the registrant, and a single digit for
5782-639: The early 21st century, the act was used to prosecute whistleblowers such as Thomas Andrews Drake , John Kiriakou , and Edward Snowden , as well as officials who communicated with journalists for innocuous reasons, such as Stephen Jin-Woo Kim . As of 2012 , India and Pakistan were holding several hundred prisoners of each other's country for minor violations like trespass or visa overstay, often with accusations of espionage attached. Some of these include cases where Pakistan and India both deny citizenship to these people, leaving them stateless . The BBC reported in 2012 on one such case, that of Mohammed Idrees, who
5880-437: The end, as shown above (in which case s could hold a value as large as 496, for the invalid ISBN 99999-999-9-X), or s and t could be reduced by a conditional subtract after each addition. Appendix 1 of the International ISBN Agency's official user manual describes how the 13-digit ISBN check digit is calculated. The ISBN-13 check digit, which is the last digit of the ISBN, must range from 0 to 9 and must be such that
5978-431: The enemy in various ways. Counterintelligence is the practice of thwarting enemy espionage and intelligence-gathering. Almost all sovereign states have strict laws concerning espionage, including those who practice espionage in other countries, and the penalties for being caught are often severe. Espionage has been recognized as of importance in military affairs since ancient times. The oldest known classified document
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#17328949340236076-509: The exchange of Francis Gary Powers for Rudolf Abel in 1962 implied the legitimacy of some espionage as an arm of foreign policy. China has a very cost-effective intelligence program that is especially effective in monitoring neighboring countries such as Mongolia , Russia and India . Smaller countries can also mount effective and focused espionage efforts. For instance, the Vietnamese communists had consistently superior intelligence during
6174-803: The government for which they work who assume covert roles in organizations. This is in contrast to an operative with official cover, where they assume a position in their government, such as the diplomatic service , which provides them with diplomatic immunity if their espionage activities are discovered. Operatives under non-official cover do not have this "safety net", and if captured and charged as spies are subject to severe criminal punishments, up to and including execution . Operatives under non-official cover are also usually trained to deny any connection with their government, thus preserving plausible deniability , but also denying them any hope of diplomatic legal assistance – or official acknowledgment of their service. Such an operative or agent may be referred to as
6272-636: The height of World War I , all great powers except the United States had elaborate civilian espionage systems, and all national military establishments had intelligence units. In order to protect the country against foreign agents, the U.S. Congress passed the Espionage Act of 1917 . Mata Hari , who obtained information for Germany by seducing French officials, was the most noted espionage agent of World War I. Prior to World War II , Germany and Imperial Japan established elaborate espionage nets. In 1942
6370-475: The host nation often declares the agent persona non grata and orders them to leave the country. Official cover operatives are granted a set of governmental protections, and if caught in the act of espionage, they can request diplomatic protection from their government. In other words, official cover operatives are agents officially recognized by their country. In espionage , operatives under non-official cover ( NOC ) are operatives without official ties to
6468-591: The intelligence reorganization of 2004, the director of national intelligence is responsible for overseeing and coordinating the activities and budgets of the U.S. intelligence agencies. In the Cold War , espionage cases included Alger Hiss , Whittaker Chambers and the Rosenberg Case. In 1952 the Communist Chinese captured two CIA agents and in 1960 Francis Gary Powers , flying a U-2 reconnaissance mission over
6566-508: The more common practice is to recruit a person already trusted with access to sensitive information, sometimes a person with a well-prepared synthetic identity (cover background), called a legend in tradecraft , may attempt to infiltrate a target organization. These agents can be moles (who are recruited before they get access to secrets), defectors (who are recruited after they get access to secrets and leave their country) or defectors in place (who get access but do not leave). A legend
6664-451: The most common forms of agent are: Less common or lesser known forms of agent include: Espionage against a nation is a crime under the legal code of many nations. In the United States, it is covered by the Espionage Act of 1917 . The risks of espionage vary. A spy violating the host country's laws may be deported, imprisoned, or even executed. A spy violating its own country's laws can be imprisoned for espionage or/and treason (which in
6762-437: The national defence with an intent, or reason to believe, that the information may be used to the injury of the United States or to the advantage of any foreign nation". Black's Law Dictionary (1990) defines espionage as: "... gathering, transmitting, or losing ... information related to the national defense ". Espionage is a violation of United States law, 18 U.S.C. §§ 792 – 798 and Article 106a of
6860-560: The nine-digit SBN code until 1974. ISO has appointed the International ISBN Agency as the registration authority for ISBN worldwide and the ISBN Standard is developed under the control of ISO Technical Committee 46/Subcommittee 9 TC 46/SC 9 . The ISO on-line facility only refers back to 1978. An SBN may be converted to an ISBN by prefixing the digit "0". For example, the second edition of Mr. J. G. Reeder Returns , published by Hodder in 1965, has "SBN 340 01381 8" , where "340" indicates
6958-438: The organization can be complex with many methods to avoid detection, including clandestine cell systems . Often the players have never met. Case officers are stationed in foreign countries to recruit and supervise intelligence agents, who in turn spy on targets in the countries where they are assigned. A spy need not be a citizen of the target country and hence does not automatically commit treason when operating within it. While
7056-688: The organization in which they are planted, such as giving false reports about their country's military movements, or about a competing company's ability to bring a product to market. Spies may be given other roles that also require infiltration, such as sabotage . Many governments spy on their allies as well as their enemies, although they typically maintain a policy of not commenting on this. Governments also employ private companies to collect information on their behalf such as SCG International Risk , International Intelligence Limited and others. Many organizations, both national and non-national, conduct espionage operations. It should not be assumed that espionage
7154-423: The penalty for espionage in many countries was execution. This was true right up until the era of World War II ; for example, Josef Jakobs was a Nazi spy who parachuted into Great Britain in 1941 and was executed for espionage. In modern times, many people convicted of espionage have been given penal sentences rather than execution. For example, Aldrich Hazen Ames is an American CIA analyst, turned KGB mole, who
7252-511: The place where the desired information is stored or accessing the people who know the information and will divulge it through some kind of subterfuge . There are exceptions to physical meetings, such as the Oslo Report , or the insistence of Robert Hanssen in never meeting the people who bought his information. The US defines espionage towards itself as "the act of obtaining, delivering, transmitting, communicating, or receiving information about
7350-513: The problems to tensions caused by the Kashmir conflict . Espionage is illegal in the UK under the National Security Act 2023 , which repealed prior Official Secrets Acts and creates three separate offences for espionage. A person is liable to be imprisoned for life for committing an offence under Section 1 of the Act, or 14 years for an offence under Sections 2 and 3 Government intelligence
7448-412: The prosecution of the war by the United States, or elsewhere". ISBN (identifier) The International Standard Book Number ( ISBN ) is a numeric commercial book identifier that is intended to be unique. Publishers purchase or receive ISBNs from an affiliate of the International ISBN Agency. A different ISBN is assigned to each separate edition and variation of a publication, but not to
7546-502: The publication element. Once that block of ISBNs is used, the publisher may receive another block of ISBNs, with a different registrant element. Consequently, a publisher may have different allotted registrant elements. There also may be more than one registration group identifier used in a country. This might occur once all the registrant elements from a particular registration group have been allocated to publishers. By using variable block lengths, registration agencies are able to customise
7644-428: The publishing house and remain undetected, the book would be issued with an invalid ISBN. In contrast, it is possible for other types of error, such as two altered non-transposed digits, or three altered digits, to result in a valid ISBN (although it is still unlikely). Each of the first nine digits of the 10-digit ISBN—excluding the check digit itself—is multiplied by its (integer) weight, descending from 10 to 2, and
7742-497: The publishing industry is within a country. The first version of the ISBN identification format was devised in 1967, based upon the 9-digit Standard Book Numbering ( SBN ) created in 1966. The 10-digit ISBN format was developed by the International Organization for Standardization (ISO) and was published in 1970 as international standard ISO 2108 (any 9-digit SBN can be converted to a 10-digit ISBN by prefixing it with
7840-476: The purpose of acquiring intelligence are not considered spies but are lawful combatants entitled to be treated as prisoners of war upon capture by the enemy. Article 30 states that a spy captured behind enemy lines may only be punished following a trial. However, Article 31 provides that if a spy successfully rejoined his own military and is then captured by the enemy as a lawful combatant, he cannot be punished for his previous acts of espionage and must be treated as
7938-500: The purpose of waging destruction on an enemy's vital targets in addition to intelligence gathering. For example, during World War II , eight German agents entered the U.S. in June 1942 as part of Operation Pastorius , a sabotage mission against U.S. economic targets. Two weeks later, all were arrested in civilian clothes by the FBI thanks to two German agents betraying the mission to the U.S. Under
8036-475: The ranges will vary depending on the number of books and the number, type, and size of publishers that are active. Some ISBN registration agencies are based in national libraries or within ministries of culture and thus may receive direct funding from the government to support their services. In other cases, the ISBN registration service is provided by organisations such as bibliographic data providers that are not government funded. A full directory of ISBN agencies
8134-405: The same book must each have a different ISBN assigned to it. The ISBN is thirteen digits long if assigned on or after 1 January 2007, and ten digits long if assigned before 2007. An International Standard Book Number consists of four parts (if it is a 10-digit ISBN) or five parts (for a 13-digit ISBN). Section 5 of the International ISBN Agency's official user manual describes the structure of
8232-405: The service of a government , company , criminal organization , or independent operation, can commit espionage. The practice is clandestine , as it is by definition unwelcome. In some circumstances, it may be a legal tool of law enforcement and in others, it may be illegal and punishable by law. Espionage is often part of an institutional effort by a government or commercial concern. However,
8330-435: The status of wartime spies, specifically within "Laws and Customs of War on Land" (Hague IV); October 18, 1907: Chapter II Spies". Article 29 states that a person is considered a spy who, acts clandestinely or on false pretences, infiltrates enemy lines with the intention of acquiring intelligence about the enemy and communicate it to the belligerent during times of war. Soldiers who penetrate enemy lines in proper uniforms for
8428-415: The sum of all the thirteen digits, each multiplied by its (integer) weight, alternating between 1 and 3, is a multiple of 10 . As ISBN-13 is a subset of EAN-13 , the algorithm for calculating the check digit is exactly the same for both. Formally, using modular arithmetic , this is rendered: The calculation of an ISBN-13 check digit begins with the first twelve digits of the 13-digit ISBN (thus excluding
8526-430: The sum of these nine products found. The value of the check digit is simply the one number between 0 and 10 which, when added to this sum, means the total is a multiple of 11. For example, the check digit for an ISBN-10 of 0-306-40615- ? is calculated as follows: Adding 2 to 130 gives a multiple of 11 (because 132 = 12×11)—this is the only number between 0 and 10 which does so. Therefore, the check digit has to be 2, and
8624-545: The target at its execution is the sole purpose of the espionage operation. Broad areas of espionage targeting expertise include: Although the news media may speak of "spy satellites" and the like, espionage is not a synonym for all intelligence-gathering disciplines. It is a specific form of human source intelligence ( HUMINT ). Codebreaking ( cryptanalysis or COMINT ), aircraft or satellite photography ( IMINT ), and analysis of publicly available data sources ( OSINT ) are all intelligence gathering disciplines, but none of them
8722-431: The television shows The Americans , Burn Notice , Spooks , The Night Manager , Covert Affairs , The Spy , and Patriot . Espionage Espionage , spying , or intelligence gathering is the act of obtaining secret or confidential information ( intelligence ). A person who commits espionage is called an espionage agent or spy . Any individual or spy ring (a cooperating group of spies), in
8820-535: The term tends to be associated with state spying on potential or actual enemies for military purposes. Spying involving corporations is known as industrial espionage . One way to gather data and information about a targeted organization is by infiltrating its ranks. Spies can then return information such as the size and strength of enemy forces . They can also find dissidents within the organization and influence them to provide further information or to defect. In times of crisis, spies steal technology and sabotage
8918-564: The war effort. Since the end of World War II , the activity of espionage has enlarged, much of it growing out of the Cold War between the United States and the former USSR . The Russian Empire and its successor, the Soviet Union , have had a long tradition of espionage ranging from the Okhrana to the KGB (Committee for State Security), which also acted as a secret police force. In the United States,
9016-627: Was a report made by a spy disguised as a diplomatic envoy in the court of King Hammurabi , who died in around 1750 BC. The ancient Egyptians had a developed secret service, and espionage is mentioned in the Iliad , the Bible , and the Amarna letters . Espionage was also prevalent in the Greco-Roman world , when spies employed illiterate subjects in civil services . The thesis that espionage and intelligence has
9114-498: Was arrested by the U.S. Federal Bureau of Investigation (FBI), he faced life in prison; his contact, who had diplomatic immunity , was declared persona non grata and taken to the airport. Ames' wife was threatened with life imprisonment if her husband did not cooperate; he did, and she was given a five-year sentence. Hugh Francis Redmond , a CIA officer in China, spent nineteen years in a Chinese prison for espionage—and died there—as he
9212-537: Was by far the biggest user of the ISBN identifier in 2020, followed by the Republic of Korea (329,582), Germany (284,000), China (263,066), the UK (188,553) and Indonesia (144,793). Lifetime ISBNs registered in the United States are over 39 million as of 2020. A separate ISBN is assigned to each edition and variation (except reprintings) of a publication. For example, an ebook, audiobook , paperback, and hardcover edition of
9310-454: Was convicted of espionage in 1994; he is serving a life sentence without the possibility of parole in the high-security Allenwood U.S. Penitentiary . Ames was formerly a 31-year CIA counterintelligence officer and analyst who committed espionage against his country by spying for the Soviet Union and Russia . So far as it is known, Ames compromised the second-largest number of CIA agents, second only to Robert Hanssen , who also served
9408-411: Was held under Indian police control for approximately 13 years for overstaying his 15-day visa by 2–3 days after seeing his ill parents in 1999. Much of the 13 years were spent in prison waiting for a hearing, and more time was spent homeless or living with generous families. The Indian People's Union for Civil Liberties and Human Rights Law Network both decried his treatment. The BBC attributed some of
9506-691: Was operating without diplomatic cover and immunity. In United States law, treason, espionage, and spying are separate crimes. Treason and espionage have graduated punishment levels. The United States in World War I passed the Espionage Act of 1917. Over the years, many spies, such as the Soble spy ring , Robert Lee Johnson , the Rosenberg ring , Aldrich Hazen Ames , Robert Philip Hanssen , Jonathan Pollard , John Anthony Walker , James Hall III , and others have been prosecuted under this law. From ancient times,
9604-524: Was required to be compatible with the EAN format, and hence could not contain the letter 'X'. According to the 2001 edition of the International ISBN Agency's official user manual, the ISBN-10 check digit (which is the last digit of the 10-digit ISBN) must range from 0 to 10 (the symbol 'X' is used for 10), and must be such that the sum of the ten digits, each multiplied by its (integer) weight, descending from 10 to 1,
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