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Spy Tools of the Cold War & Beyond

Cryptography

Cryptography

Pictured here: a tiny code book seized from an alleged Russian spy in England. Of course, all the information in the world is useless unless it can be communicated to those who need it (or are paying for it). Code books and other cryptography tools help agents communicate covertly.

Photo: Douglas Miller/Getty Images

Nov 04, 1968
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