| Aug. 2, 1960: William H. Martin and Bernon F. Mitchell of the National Security Agency defect to the Soviet Union. See David Kahn's classic work "The Codebreakers" and James Bamford's 1982 "The Puzzle Palace" for more details. |
| Aug. 2, 1960: William H. Martin and Bernon F. Mitchell of the National Security Agency defect to the Soviet Union. See David Kahn's classic work "The Codebreakers" and James Bamford's 1982 "The Puzzle Palace" for more details. |