On a cold February night in 1986, Berlin’s Glienicke Bridge became the scene of the cold war’s last ever prisoner exchange – a dramatic hand-over involving a Soviet dissident and Karel Koecher, the only foreign agent ever known to have infiltrated the CIA.
Koecher was a Czech citizen who had been living undercover in the US for 21 years. Alternately codenamed Rino, Turian or Pedro, he had moved to America in 1965 to establish himself as a mole within the CIA. Koecher’s KGB case officer, Colonel Alexander Sokolov, would later call him a super-spy.
According to files held by Czech secret police, his wife, Hana Koecherova, codenamed Adrid, had distributed secret messages on Koecher’s behalf during their decades abroad but was never charged with espionage.
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Source Credits: Benjamin Cunningham in The Guardian