蜜芽传媒

During the Cold War, the Soviet Union relied heavily on an elaborate network of spies who helped them with their nuclear projects. According to Svetlana Lokhova, it all started with an agent called Stanislav Shumovsky who went undercover to the United States in the early 1930s.

(Image: from the cover of The Spy Who Changed History. Credit: Svetlana Lokhova)