Robert Hanssen was a conundrum - an FBI agent and self-proclaimed patriot who became the most damaging spy in the bureau's history. Amid the nuclear threat of the Cold War, America's prized secrets were falling into the hands of its sworn enemy—the Kremlin. The FBI's hunt for the leak led to an astonishing discovery—the mole was one of its own. In this 8-episode limited series, CBS News Chief Washington Correspondent Major Garrett delves into the life of Robert Hanssen and unravels the chilling - and deadly - truth about his many contradictions. Listen to Agent of Betrayal: The Double Life of Robert Hanssen every Thursday, wherever you get your podcasts.

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