When the NSA's invincible code-breaking machine - encounters a mysterious code it cannot break, the agency calls in its head... Zobraziť viac
When the National Security Agency’s invincible code-breaking machine encounters a mysterious code it cannot break, the agency calls in its head cryptographer, Susan Fletcher, a brilliant, beautiful mathematician... Zobraziť viac
When the National Security Agency’s invincible code-breaking machine encounters a mysterious code it cannot break, the agency calls in its head cryptographer, Susan Fletcher, a brilliant, beautiful mathematician.... Zobraziť viac
