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Code

How to Cipher Like a Soviet

See if you can figure out how the American code-breakers unraveled the complexities of the Russian codebook

In the spring of 2018, Angeline Nanni revisited Arlington Hall, where the Venona team got cracking. It is now on the National Register of Historic Places.

Secrets of American History

The Women Code Breakers Who Unmasked Soviet Spies

At the height of the Cold War, America’s most secretive counterespionage effort set out to crack unbreakable ciphers

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