Martin and Mitchell defection
martin-and-mitchell-defection-1753000896787-d5825d
Description
In September 1960, two U.S. National Security Agency (NSA) cryptologists, William Hamilton Martin and Bernon F. Mitchell, defected to the Soviet Union. A secret 1963 NSA study said that: "Beyond any doubt, no other event has had, or is likely to have in the future, a greater impact on the Agency's security program."
ID: martin-and-mitchell-defection-1753000896787-d5825d
