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Matches in DBpedia 2014 for { ?s ?p "Atomic spies" or "Atom spies" were people in the United States, Great Britain, and Canada who are thought to have illicitly given information about nuclear weapons production or design to the Soviet Union during World War II and the early Cold War. Exactly what was given, and whether everyone on the list gave it, is still a matter of some scholarly dispute, and in some cases what were originally seen as strong testimonies or confessions were admitted as fabricated in later years. Their work constitutes the most publicly well-known and well-documented case of nuclear espionage in the history of nuclear weapons. There was a movement among nuclear scientists to share the information with the world scientific community, but that was firmly quashed by the U.S. government.Whether the information significantly aided the speed of the Soviet atomic bomb project is also disputed. While some of the information given could have aided in developing a nuclear weapon, the manner in which the heads of the Soviet bomb project actually used the information has led scholars to doubt its role in increasing the speed of development. According to this account, Igor Kurchatov and Lavrenty Beria used the information primarily as a "check" against their own scientists' work and did not liberally share the information with them, distrusting both their own scientists as well as the espionage information. Later scholarship has also shown that the decisive brake on early Soviet development was not problems in weapons design but, as in the Manhattan Project, the difficulty in procuring fissile materials, especially since the Soviet Union had no uranium deposits known when it began its program (unlike the United States).Confirmation about espionage work came from the VENONA project, which intercepted and decrypted Soviet intelligence reports sent during and after World War II. These provided clues to the identity of several spies at Los Alamos and elsewhere, some of whom have never been identified. Some of this information was available, but not usable in court for secrecy reasons, during the trials of the 1950s. Additionally, records from Soviet archives, which were briefly opened to researchers after the fall of the Soviet Union, included more information about some spies.. }

• Atomic_spies abstract ""Atomic spies" or "Atom spies" were people in the United States, Great Britain, and Canada who are thought to have illicitly given information about nuclear weapons production or design to the Soviet Union during World War II and the early Cold War. Exactly what was given, and whether everyone on the list gave it, is still a matter of some scholarly dispute, and in some cases what were originally seen as strong testimonies or confessions were admitted as fabricated in later years. Their work constitutes the most publicly well-known and well-documented case of nuclear espionage in the history of nuclear weapons. There was a movement among nuclear scientists to share the information with the world scientific community, but that was firmly quashed by the U.S. government.Whether the information significantly aided the speed of the Soviet atomic bomb project is also disputed. While some of the information given could have aided in developing a nuclear weapon, the manner in which the heads of the Soviet bomb project actually used the information has led scholars to doubt its role in increasing the speed of development. According to this account, Igor Kurchatov and Lavrenty Beria used the information primarily as a "check" against their own scientists' work and did not liberally share the information with them, distrusting both their own scientists as well as the espionage information. Later scholarship has also shown that the decisive brake on early Soviet development was not problems in weapons design but, as in the Manhattan Project, the difficulty in procuring fissile materials, especially since the Soviet Union had no uranium deposits known when it began its program (unlike the United States).Confirmation about espionage work came from the VENONA project, which intercepted and decrypted Soviet intelligence reports sent during and after World War II. These provided clues to the identity of several spies at Los Alamos and elsewhere, some of whom have never been identified. Some of this information was available, but not usable in court for secrecy reasons, during the trials of the 1950s. Additionally, records from Soviet archives, which were briefly opened to researchers after the fall of the Soviet Union, included more information about some spies.".