Spying on spies : how Elizebeth Smith Friedman broke the Nazis' secret codes
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Spying on spies : how Elizebeth Smith Friedman broke the Nazis' secret codes
-- How Elizebeth Smith Friedman broke the Nazis' secret codes
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Marissa Moss tells the story of America’s first female cryptanalyst, Elizebeth Smith Friedman, who busted Nazi spy rings.
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