the Soviet atomic bomb project. Sudoplatov's exact role and contribution, as well as his claim that he "engineered the theft of atomic secrets from the United States with the aid of four eminent scientists" is under discussion, since, according to the Foreign Intelligence Service of Russia, Department S was established in September 1945, and Sudoplatov had limited access to the Soviet atomic effort from that time until October 1946 and did not have any access to foreign agents tasked with collecting the atomic intelligence. In 1995, the Federal Bureau of Investigation (F.B.I.) conducted an investigation and declared that it "is not in possession of any credible evidence that would suggest that Neils [sic] Bohr, Enrico Fermi, Robert Oppenheimer, or Leo Szilard engaged in any espionage activity on behalf of any foreign power [...], the F.B.I. has classified information available that argues against the conclusions reached by the author of 'Special Tasks.' The F.B.I., therefore, considers such allegations to be unfounded". MGB In the summer of 1946, Sudoplatov was removed from both posts, and in September he was placed in charge of another group at the newly renamed MGB, one which was supposed to plan sabotage actions in Western countries. In November, 1949, he was given a temporary job helping suppress a guerrilla Ukrainian nationalist movement in Ukraine that was a relic of World War II. MVD In the spring of 1953, around the time of Stalin's death, Sudoplatov was appointed to head the yet-again renamed MVD's Bureau of Special Tasks, which was responsible for sabotage operations abroad, and ran networks of "illegals" who were given the task of preparing attacks on military establishments in NATO countries, in the event that NATO attacked the Soviet Union. Arrest, trial and imprisonment After the fall of Lavrentiy Beria, Sudoplatov was arrested on August 21, 1953, as his alleged collaborator in crimes. He feigned madness to avoid being executed with Beria and so was tried only in 1958. He was accused, among other things, of involvement with Grigory Mairanovsky's laboratory of death: As established [during the court trial], Beria and his accomplices committed terrible crimes against humanity: they tested deadly poisons, which caused agonizing death, on live humans. A special laboratory, which was established for experiments on the action of poisons on living humans, worked under the supervision of Sudoplatov and his deputy Eitingon from 1942 to 1946. They demanded he provide them only