Inside the Top-Secret Project that Led to One of the World’s Greatest Counterespionage Feats

In early February of 1943, Gene Grabeel walks toward a corner of a large, crowded room inside Arlington Hall near Washington, D.C. Around her, clutches of people huddle over tables and quietly rifle ...

How a Secret Team of American Female Codebreakers Toppled a Cold War Soviet Spy Network—and Unmasked Traitors on Home Soil

At Arlington Hall, women on the Venona Project exploited a Soviet cipher flaw to expose Cold War spies, a secret that remained hidden for decades.