#Sigint
Events indexed under #Sigint — 9 entries in the record.
Activity over time
Events per year
| Date | Event | Lanes | Status |
|---|---|---|---|
| 1967-07-01 | NSA Launches Project MINARET Watchlist Program Targeting U.S. Citizens Marshall Carter · Louis Tordella · National Security Agency · Lyndon B. Johnson · +1 | confirmed | |
| 1952-11-04 | Truman Creates National Security Agency by Classified Directive, Existence Classified for 23 Years Harry S. Truman · Ralph Canine · National Security Agency · Armed Forces Security Agency | confirmed | |
| 1949-05-20 | Armed Forces Security Agency Created, Failed Precursor That Drove NSA Consolidation Louis Johnson · Joint Chiefs of Staff · Armed Forces Security Agency · Earl Stone | confirmed | |
| 1946-03-05 | US-UK Sign Secret BRUSA/UKUSA Signals Intelligence Agreement, Foundation of Five Eyes Hoyt Vandenberg · Patrick Marr-Johnson · State-Army-Navy Communication Intelligence Board · London Signals Intelligence Board · +1 | confirmed | |
| 1945-09-01 | Project SHAMROCK Begins, NSA Obtains Copies of All International Cables for 30 Years Armed Forces Security Agency · National Security Agency · Western Union · ITT Communications · +2 | confirmed | |
| 1943-02-01 | Army Signal Intelligence Service Begins VENONA Soviet Cable Decryption, Foundation for Post-War Counterintelligence Gene Grabeel · Meredith Gardner · Army Signal Intelligence Service · Carter Clarke · +2 | confirmed | |
| 1930-04-30 | Army Signal Intelligence Service Founded Under Friedman, Institutional Ancestor of NSA William F. Friedman · U.S. Army Signal Corps · Signal Intelligence Service · War Department | confirmed | |
| 1929-10-31 | Stimson Closes Yardley's Black Chamber, Briefly Interrupting U.S. Peacetime Signals Intelligence Henry L. Stimson · Herbert O. Yardley · State Department · War Department · +1 | confirmed | |
| 1917-01-16 | British Intercept Zimmermann Telegram, Demonstrating Value of Signals Intelligence to U.S. Policy Arthur Zimmermann · British Admiralty Room 40 · Woodrow Wilson · Walter Hines Page · +1 | confirmed |