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Vitaly Yurchenko Soviet_History History of the United States KGB information During the Cold War
01-18
![Why did the Soviet spy defect to the United States for ninety days, and after returning to China, he was not punished and reinstated?[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)