The United States Army Security Agency was the United States Army's signals intelligence branch from 1945 to 1977. The Latin motto of the Army Security Agency was Semper Vigilis, which echoes the decl
Army Security Agency Shoulder Sleeve Insignia
Davis Station entrance
National Security Agency
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The National Security Agency is an intelligence agency of the United States Department of Defense, under the authority of the director of national intelligence. The NSA is responsible for global monit
United States Army Security Agency
…China, they became enemies in the Cold War between Communist states and allies, and the US and western nations. The ASA was directly subordinate to the National Security Agency, and all major field stations had NSA technical representatives present. All gathered information had time-sensitive value, depending on its importance…
NSA headquarters building in Fort Meade, Maryland, c. 1986
Black Chamber cryptanalytic work sheet for solving Japanese diplomatic cipher, 1919
Protesters against NSA data mining in Berlin wearing Chelsea Manning and Edward Snowden masks
Intercepted packages are opened carefully by NSA employees.