Espionage
The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. (February 2019) |
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Espionage, spying, or intelligence gathering is the act of obtaining secret or
Espionage is often part of an institutional effort by a government or commercial concern. However, 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
History
Espionage has been recognized as of importance in military affairs since ancient times.
The oldest known classified document was a report made by a spy disguised as a
The thesis that espionage and intelligence has a central role in
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.[9] Though not a spy himself, George Washington was America's first spymaster, utilizing espionage tactics against the British.[3]
In the 20th century, at the height of
Since the end of
In the
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 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.
Modern day
Today, spy agencies target the illegal drug trade and terrorists as well as state actors.[10]
Intelligence services value certain intelligence collection techniques over others. The former Soviet Union, for example, preferred human sources over research in open sources, while 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)[11] officers were judged by the number of agents they recruited.
Targets of espionage
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 the target at its execution is the sole purpose of the espionage operation.[citation needed]
Broad areas of espionage targeting expertise include:[citation needed]
- Natural resources: strategic production identification and assessment (food, energy, materials). Agents are usually found among bureaucrats who administer these resources in their own countries
- Popular sentiment towards domestic and foreign policies (popular, middle class, elites). Agents often recruited from field journalistic crews, exchange postgraduate students and sociology researchers
- Strategic economic strengths (production, research, manufacture, infrastructure). Agents recruited from science and technology academia, commercial enterprises, and more rarely from among military technologists
- Military capability intelligence (offensive, defensive, manoeuvre, naval, air, space). Agents are trained by military espionage education facilities and posted to an area of operation with covert identities to minimize prosecution
- Counterintelligence operations targeting opponent's intelligence services themselves, such as breaching the confidentiality of communications and recruiting defectors or moles
Methods and terminology
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 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 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 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".
Technology and techniques
- Agent handling
- Biographic leverage
- Concealment device
- Covert agent
- Covert listening device
- Cut-out
- Cyber spying
- Dead drop
- False flag operations
- Front organisation
- Honeypot
- Impersonation
- Impostor
- Interrogation
- Non-official cover
- Numbers messaging
- Official cover
- One-way voice link
- Sabotage
- Safe house
- Side channel attack
- Spy ship
- Steganography
- Surveillance
- Surveillance aircraft
- Surveillance balloon
Source:[13]
Organization
A spy is a person employed to seek out top secret information from a source.
In larger networks, 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,[14] 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 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[14] in tradecraft, may attempt to infiltrate a target organization.
These agents can be moles (who are recruited before they get access to secrets),
A legend 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 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
Many organizations, both national and non-national, conduct espionage operations. It should not be assumed that espionage is always directed at the most secret operations of a target country. National and terrorist organizations and other groups are also targeted.[15] 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 the adversary has sophisticated SIGINT detection and interception capability. Spies rely on COVCOM or covert communication through technically advanced spy devices.[3] Agents must also transfer money securely.
Industrial espionage
Reportedly Canada is losing $12 billion[16] and German companies are estimated to be losing about €50 billion ($87 billion) and 30,000 jobs[17] to industrial espionage every year.
Agents in espionage
In espionage jargon, an "agent" 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 the most common forms of agent are:
- Agent provocateur: instigates trouble or provides information to gather as many people as possible into one location for an arrest.
- Intelligence agent: provides access to sensitive information through the use of special privileges. If used in corporate intelligence gathering, this may include gathering information of a corporate business venture or stock portfolio. In economic intelligence, "Economic Analysts may use their specialized skills to analyze and interpret economic trends and developments, assess and track foreign financial activities, and develop new econometric and modelling methodologies."[18] This may also include information of trade or tariff.
- Agent-of-influence: provides political influence in an area of interest, possibly including publications needed to further an intelligence service agenda.[14] The use of the media to print a story to mislead a foreign service into action, exposing their operations while under surveillance.
- Double agent: engages in clandestine activity for two intelligence or security services (or more in joint operations), who provides information about one or about each to the other, and who wittingly withholds significant information from one on the instructions of the other or is unwittingly manipulated by one so that significant facts are withheld from the adversary. Peddlers, fabricators, and others who work for themselves rather than a service are not double agents because they are not agents. The fact that double agents have an agent relationship with both sides distinguishes them from penetrations, who normally are placed with the target service in a staff or officer capacity."[19]
- Redoubled agent: forced to mislead the foreign intelligence service after being caught as a double agent.
- Unwitting double agent: offers or is forced to recruit as a double or redoubled agent and in the process is recruited by either a third-party intelligence service or his own government without the knowledge of the intended target intelligence service or the agent. This can be useful in capturing important information from an agent that is attempting to seek allegiance with another country. The double agent usually has knowledge of both intelligence services and can identify operational techniques of both, thus making third-party recruitment difficult or impossible. The knowledge of operational techniques can also affect the relationship between the operations officer (or case officer) and the agent if the case is transferred by an operational targeting officer] to a new operations officer, leaving the new officer vulnerable to attack. This type of transfer may occur when an officer has completed his term of service or when his cover is blown.
- Sleeper agent: recruited to wake up and perform a specific set of tasks or functions while living undercover in an area of interest. This type of agent is not the same as a deep cover operative, who continually contacts a case officer to file intelligence reports. A sleeper agent is not in contact with anyone until activated.
- Triple agent: works for three intelligence services.[how?]
Less common or lesser known forms of agent include:
- Access agent: provides access to other potential agents by providing offender profiling information that can help lead to recruitment into an intelligence service.
- Confusion agent: provides misleading information to an enemy intelligence service or attempts to discredit the operations of the target in an operation.
- Facilities agent: provides access to buildings, such as garages or offices used for staging operations, resupply, etc.
- Illegal agent: lives in another country under false credentials and does not report to a local station. A nonofficial cover operative can be dubbed an "illegal"[20] when working in another country without diplomatic protection.
- Principal agent: functions as a handler for an established network of agents, usually considered "blue chip".
Law
Espionage against a nation is a crime under the
In United States law, treason,[22] espionage,[23] and spying[24] are separate crimes. Treason and espionage have graduated punishment levels.
The United States in
, and others have been prosecuted under this law.History of espionage laws
From ancient times, 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,
Use against non-spies
Espionage laws are also used to prosecute non-spies. In the United States, the Espionage Act of 1917 was used against socialist politician
As of 2012[update], 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.[citation needed] The BBC reported in 2012 on one such case, that of Mohammed Idrees, who 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 the problems to tensions caused by the Kashmir conflict.[32]
Espionage laws in the UK
Espionage is illegal in the UK under the Official Secrets Acts of 1911 and 1920. The UK law under this legislation considers espionage as "concerning those who intend to help an enemy and deliberately harm the security of the nation". According to MI5, a person commits the offence of 'spying' if they, "for any purpose prejudicial to the safety or interests of the State": approaches, enters or inspects a prohibited area; makes documents such as plans that are intended, calculated, or could directly or indirectly be of use to an enemy; or "obtains, collects, records, or publishes, or communicates to any other person any secret official code word, or password, or any sketch, plan, model, article, or note, or other document which is calculated to be or might be or is intended to be directly or indirectly useful to an enemy". The illegality of espionage also includes any action which may be considered 'preparatory to' spying, or encouraging or aiding another to spy.[33]
Under the penal codes of the UK, those found guilty of espionage are liable to imprisonment for a term of up to 14 years, although multiple sentences can be issued.
Government intelligence laws and its distinction from espionage
Government intelligence 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 a combination of the two."[34]
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, 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.
War
In war, espionage 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,
The
The ones that are excluded from being treated as spies while behind enemy lines are escaping prisoners of war and downed
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 the prosecution of the war by the United States, or elsewhere".[43]
Spy fiction
Spies have long been favorite topics for novelists and filmmakers.[44] An early example of espionage literature is Kim by the English novelist Rudyard Kipling, with a description of the training of an intelligence agent in the Great Game between the UK and Russia in 19th century Central Asia. An even earlier work was James Fenimore Cooper's classic novel, The Spy, written in 1821, about an American spy in New York during the Revolutionary War.
During the many 20th-century spy scandals, much information became publicly known about national spy agencies and dozens of real-life secret agents. These sensational stories piqued public interest in a profession largely off-limits to
Johnny Fedora achieved popularity as a fictional agent of early Cold War espionage, but James Bond is the most commercially successful of the many spy characters created by intelligence insiders during that struggle. Other fictional agents include Le Carré's George Smiley, and Harry Palmer as played by Michael Caine.
Jumping on the spy bandwagon, other writers also started writing about spy fiction featuring female spies as protagonists, such as The Baroness, which has more graphic action and sex, as compared to other novels featuring male protagonists.
Spy fiction has permeated the video game world as well, in games such as Perfect Dark, GoldenEye 007, No One Lives Forever, and the Metal Gear series.
Espionage has also made its way into comedy depictions. The 1960s TV series
The historical novel The Emperor and the Spy highlights the adventurous life of U.S. Colonel Sidney Forrester Mashbir, who during the 1920s and 1930s attempted to prevent war with Japan, and when war did erupt, he became General MacArthur's top advisor in the Pacific Theater of World War Two.[46][47]
Black Widow is also a fictional agent who was introduced as a Russian spy, an antagonist of the superhero Iron Man. She later became an agent of the fictional spy agency S.H.I.E.L.D. and a member of the superhero team the Avengers.
See also
- MI5
- Federal Bureau of Investigation
- Central Intelligence Agency
- Covert operation
- Cover (intelligence gathering)
- Detective
- Special agent
- Secret service
- Secret identity
- Sleeper agent
- Undercover operation
- American espionage in China
- Chinese espionage in the United States
- Clandestine operation
- Foreign agent
- Intelligence assessment
- History of Soviet espionage
- Human intelligence (intelligence gathering)
- List of intelligence agencies
- List of intelligence gathering disciplines
- Military intelligence
- Spying on United Nations leaders by United States diplomats
References
Citations
- ^ "Espionage". MI5.
- ^ Fischbacher-Smith, D., 2011. "The enemy has passed through the gate: Insider threats, the dark triad, and the challenges around security". Journal of Organizational Effectiveness: People and Performance, 2(2), pp. 134–156.
- ^ a b c "Espionage Facts". International Spy Museum. Retrieved 12 July 2021.
- JSTOR 643204.
- S2CID 220652440– via JSTOR.
- ^ ehoward (2006-06-12). "Espionage in Ancient Rome". HistoryNet. Retrieved 2023-12-21.
- ISBN 9780241305225.
- ^
ISBN 9783733802141. Retrieved 6 January 2023.
Ein neuer Typ des Spions War Daniel Defoe (1650-1731), der Autor des weltberühmten Romans "Robinson Crusoe" ... Zudem verfaßte Defoe eine Theorie der Spionage, in der er der Regierung die Spitzelmethoden des Polizeistaates empfahl.
- ^ Allen, Thomas. "Intelligence in the Civil War" (PDF). Intelligence Resource Program, Central Intelligence Agency. Retrieved September 3, 2021.
- ^ Arrillaga, Pauline. "China's spying seeks secret US info." Archived May 19, 2011, at the Wayback Machine AP, 7 May 2011.
- ISBN 978-0-425-09474-7.
- US Department of Defense (2007-07-12). "Joint Publication 1-02 Department of Defense Dictionary of Military and Associated Terms" (PDF). Archived from the original(PDF) on 2009-11-08. Retrieved 2007-10-01.
- ^ Martinus Nijhoff Publishers. p. 214.
- ^ a b c d "Language of Espionage". International Spy Museum. Retrieved 12 July 2021.
- ^ "Cyber Espionage to Combat Terrorism" (PDF).
- ^ "Defectors say China running 1,000 spies in Canada". CBC News. June 15, 2005.
- ^ "Beijing's spies cost German firms billions, says espionage expert". The Sydney Morning Herald. July 25, 2009.
- ^ Cia.gov
- ^ "Double Agent". cia.gov. Archived from the original on 2019-07-01. Retrieved 2010-05-14.
- ^ Illegal Archived January 6, 2011, at the Wayback Machine Mi5.gov. "How spies operate".
- ^ "CIA Status Improves Contractor's Case for Immunity". New America Media. Archived from the original on 2013-11-02. Retrieved 2013-08-17.
- ^ treason Archived December 3, 2012, at the Wayback Machine
- ^ "espionage". Archived from the original on 3 December 2012.
- ^ spying Archived December 3, 2012, at the Wayback Machine
- ^ "Aldrich Ames Criminal Complaint". John Young Architect. Archived from the original on 2011-05-13. Retrieved 2011-03-19.
- ^ "USA v. Robert Philip Hanssen: Affidavit in Support of Criminal Complaint, Arrest Warrant and Search Warrant". fas.org. Retrieved 2011-03-19.
- ^ "Aldrich Hazen Ames Register Number: 40087-083". Bop.gov. Federal Bureau of Prisons. Archived from the original on 2012-09-19. Retrieved 2014-01-03. (Search result)
- ^ "FBI – Aldrich Hazen Ames". FBI. Archived from the original on 2010-10-13.
- ^ "Robert Hanssen, F.B.I. Agent Exposed as Spy for Moscow, Dies at 79". The New York Times. Retrieved 5 June 2023.
- ^ Gerstein, Josh (2011-03-07). "Obama's hard line on leaks". politico.com. Retrieved 2011-03-19.
- ^ See the article on John Kiriakou
- ^ Your World: The Nowhere Man Archived 2019-09-15 at the Wayback Machine, Rupa Jha, October 21, 2012, BBC (retrieved 2012-10-20) (Program link: The Nowhere Man)
- ^ "Espionage and the law | MI5 - the Security Service". Archived from the original on 2014-09-25. Retrieved 2014-08-19.
- ^ "What is espionage? | MI5 - the Security Service". Archived from the original on 2013-11-01. Retrieved 2013-08-16.
- ^ "Convention (IV) respecting the Laws and Customs of War on Land and its annex: Regulations concerning the Laws and Customs of War on Land. The Hague, 18 October 1907". International Committee of the Red Cross.
- Greenwood Publishing Group. p. 125.
- S2CID 156655154.
- ^ "United States of America, Practice Relating to Rule 62. Improper Use of Flags or Military Emblems, Insignia or Uniforms of the Adversary". International Committee of the Red Cross.
- ISBN 9781428910676.
- ISBN 978-1-929446-03-2.
- ISBN 9780691006512.
- ISBN 978-90-286-0148-2.
- ^ "UCMJ – Article 106 – Spies". About.com US Military. Archived from the original on 2013-05-15.
- ^ Brett F. Woods, Neutral Ground: A Political History of Espionage Fiction (2008) online Archived 2019-03-27 at the Wayback Machine
- ^ Miller, Toby, Spyscreen: Espionage on Film and TV from the 1930s to the 1960s (Oxford University Press, 2003).
- ^ Katz, Stan S. (2019). "The Emperor and the Spy". TheEmperorAndTheSpy.com. Archived from the original on 2019-09-26.
- ISBN 978-0-9903349-4-1.
Works cited
- Johnson, John (1997). The Evolution of British Sigint, 1653–1939. London: OCLC 52130886.
- Winkler, Jonathan Reed (July 2009). "Information Warfare in World War I". The Journal of Military History. 73 (3): 845–867. S2CID 201749182.
Further reading
- Aldrich, Richard J., and Christopher Andrew, eds. Secret Intelligence: A Reader (2nd ed. 2018); focus on the 21st century; reprints 30 essays by scholars. excerpt
- Andrew, Christopher, The Secret World: A History of Intelligence, 2018.
- Burnham, Frederick Russell, Taking Chances, 1944.
- Felix, Christopher [pseudonym for James McCarger] Intelligence Literature: Suggested Reading List. US CIA. Retrieved September 2, 2012.[dead link] A Short Course in the Secret War, 4th Edition. Madison Books, November 19, 2001.
- Friedman, George. America's Secret War: Inside the Hidden Worldwide Struggle Between the United States and Its Enemies 2005
- Gopnik, Adam, "Spy vs. Spy vs. Spy: How valuable is espionage?", The New Yorker, 2 September 2019, pp. 53–59. "There seems to be a paranoid paradox of espionage: the better your intelligence, the dumber your conduct; the more you know, the less you anticipate.... Hard-won information is ignored or wildly misinterpreted.... [It] happens again and again [that] a seeming national advance in intelligence is squandered through cross-bred confusion, political rivalry, mutual bureaucratic suspicions, intergovernmental competition, and fear of the press (as well as leaks to the press), all seasoned with dashes of sexual jealousy and adulterous intrigue." (p. 54.)
- Jeffreys-Jones, Rhodri. In Spies, We Trust: The Story of Western Intelligence (2013), covers U.S. and Britain
- Jenkins, Peter. Surveillance Tradecraft: The Professional's Guide to Surveillance Training ISBN 978-0-9535378-2-2
- Kahn, David, The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet, 1996 revised edition. First published 1967.
- Keegan, John, Intelligence in War: Knowledge of the Enemy from Napoleon to Al-Qaeda, 2003.
- Knightley, Phillip, The Second Oldest Profession: Spies and Spying in the Twentieth Century, Norton, 1986.
- financial services company HSBCthat her company was not doing business with Iran. Canadian authorities, acting on a U.S. request, arrested her... in December 2018. After... almost three years under house arrest... Meng... was allowed to return to China... But by [then] the prospects for Chinese dominance of 5G had vanished..." (pp. 154–155.) Farrell and Newman, writes Krugman, "are worried about the possibility of [U.S. Underground Empire] overreach. [I]f the [U.S.] weaponizes the dollar against too many countries, they might... band together and adopt alternative methods of international payment. If countries become deeply worried about U.S. spying, they could lay fiber-optic cables that bypass the [U.S.]. And if Washington puts too many restrictions on American exports, foreign firms might turn away from U.S. technology." (p. 155.)
- Lerner, Brenda Wilmoth & K. Lee Lerner, eds. Terrorism: essential primary sources Thomas Gale 2006 ISBN 978-1-4144-0621-3
- Lerner, K. Lee and Brenda Wilmoth Lerner, eds. Encyclopedia of Espionage, Intelligence and Security (2003), worldwide recent coverage 1100 pages.
- May, Ernest R. (ed.). Knowing One's Enemies: Intelligence Assessment Before the Two World Wars (1984).
- O'Toole, George. Honorable Treachery: A History of U.S. Intelligence, Espionage, Covert Action from the American Revolution to the CIA 1991
- Murray, Williamson, and Allan Reed Millett, eds. Calculations: net assessment and the coming of World War II (1992).
- Owen, David. Hidden Secrets: A Complete History of Espionage and the Technology Used to Support It
- Richelson, Jeffery T. A Century of Spies: Intelligence in the Twentieth Century (1977)
- Richelson, Jeffery T. The U.S. Intelligence Community (1999, fourth edition)
- Shaw, Tamsin, "Ethical Espionage" (review of Calder Walton, Spies: The Epic Intelligence War Between East and West, Simon and Schuster, 2023, 672 pp.; and Soviet-Afghan War (a disastrous military fiasco for the Soviets) and perhaps support for the anti-Soviet Solidarity movement in Poland." (p. 34.)
- Smith, W. Thomas Jr. Encyclopedia of the Central Intelligence Agency (2003)
- Tuchman, Barbara W., The Zimmermann Telegram, New York, Macmillan, 1962.
- Warner, Michael. The Rise and Fall of Intelligence: An International Security History (2014)
- Zegart, Amy B. Spies, Lies, and Algorithms: The History and Future of American Intelligence (2022), university textbook. online reviews