This undated photo provided by the Central Intelligence Agency shows the 1990 dedicated sculpture "Kryptos" by James Sanborn at the Central Intelligence Agency in ...
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Can YOU solve Kryptos K4? Code has left the CIA baffled for 35 years - only one man knows the answer
Stood outside the CIA's headquarters in Langley, Virginia, is a mystery that has eluded the agency's brightest minds for 35 years. A curving metal sculpture, known as Kryptos, was built by the artist ...
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