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In 1953, after Soviet cables were secretly decrypted by U.S. counter-intelligence, Maurice Halperin was called before the [[Senate Internal Security Subcommittee]] to defend himself on charges of espionage.  Halperin denied the charges, but nevertheless fled to Mexico and then, to avoid extradition, to the Soviet Union. Among the friends he made there was the British traitor [[Donald Duart Maclean|Donald Maclean]] as well as Cuban revolutionary leader [[Che Guevara]].  

In 1953, after Soviet cables were secretly decrypted by U.S. counter-intelligence, Maurice Halperin was called before the [[Senate Internal Security Subcommittee]] to defend himself on charges of espionage.  Halperin denied the charges, but nevertheless fled to Mexico and then, to avoid extradition, to the Soviet Union. Among the friends he made there was the British traitor [[Donald Duart Maclean|Donald Maclean]] as well as Cuban revolutionary leader [[Che Guevara]].  

Disenchanted with communism in the Soviet Union, Halperin accepted Guevara's invitation to come to Havana in 1962. There he worked for the [[Fidel Castro|

Disenchanted with communism in the Soviet Union, Halperin accepted Guevara's invitation to come to Havana in 1962. There he worked for the [[Fidel Castro|Castro]] government for five years before political tensions forced him to leave for [[Vancouver]], Canada. He then became a political science professor at Simon Fraser University, and wrote several books critical of Castro's government and the socio-political situation in Cuba.

Castro]] government for five years before political tensions forced him to leave for [[Vancouver]], Canada. He then became a political science professor at Simon Fraser University, and wrote several books critical of Castro's government and the socio-political situation in Cuba.

After Halperin's death, the release of the ''[[Venona project]]'' decryptions of coded Soviet cables, as well as information gleaned from Soviet KGB archives, revealed that Halperin was involved in espionage activities on behalf of the Soviet Union while serving in an official capacity with the United States government.<ref>http://www.johnearlhaynes.org/page45.html,</ref><ref>

After Halperin's death, the release of the ''[[Venona project]]'' decryptions of coded Soviet cables, as well as information gleaned from Soviet KGB archives, revealed that Halperin was involved in espionage activities on behalf of the Soviet Union while serving in an official capacity with the United States government.<ref>http://www.johnearlhaynes.org/page45.html,</ref><ref>