Threats can also be made against family or friends of the target—Svetlana Tumanova was told by the KGB that her family in the Soviet Union would be harmed if she did not co-operate, and Ronald Humphrey said that he had helped North Vietnam in order to obtain the release of his Vietnamese wife.
Some of the documents were used by the North Vietnamese and Viet Cong negotiators at the Paris Peace Conference.
She played a role in the capture and conviction of North Vietnamese spies Ronald Humphrey and David Truong.
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