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Kryptos and the unsolved CIA code

A true story about the famous Kryptos sculpture and the decades long effort to solve its final unsolved code.
(SAUL LOEB/AFP/AFP) It is one of the world's most famous unsolved codes whose answer could sell for a fortune -- but two US friends say they have already found the secret hidden by "Kryptos." The ...
The story of Kryptos and the cryptanalyst who spent decades trying to solve the CIA sculpture greatest mystery.
This undated photo provided by the Central Intelligence Agency shows the 1990 dedicated sculpture "Kryptos" by James Sanborn at the Central Intelligence Agency in ...
It is one of the world's most famous unsolved codes whose answer could sell for a fortune -- but two US friends say they have already found the secret hidden by "Kryptos." ...