"1hk" - 1 õppematerjal

TheCodeBreakers

gence functions and the coordination responsibilities of the individual agencies. It left them with tactical communica-£ tions intelligence, which can best be performed near the point of combat and not at a central location (except for basic system solutions), and with low-echelon communications security, which differs radically in ground, sea, and air forces. Even in these areas A.F.S.A. backed them up. A.F.S.A. drew its personnel from the separate departmental  J8U 1HK CUlJtBKtAK.t,KS agencies, though it later hired separately, and housed itself in their buildings. The merits of the unified approach to cryptology quickly manifested themselves. They warranted expanding that approach beyond the Defense Department to all cryptologic activities of the United States government, such as State Department cryptosystems. Accordingly, President Harry S Truman promulgated a directive that created the National Security Agency on November 4, 1952, abolishing A.F.S.A