Duane "Dewey" Clarridge, a CIA veteran, speaks in May 2007 during an Arkansas Committee on Foreign Relations luncheon in Little Rock, Ark. The retired spy criticized the CIA's leadership and said a lack of human intelligence had led to mistakes in Iraq, Iran and North Korea. Mike Wintroath/AP hide caption

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Russia's Vladimir Putin makes a speech in 2009 after receiving an award in Dresden, Germany, where he served as a KGB officer during the Cold War. Norbert Millauer/AFP/Getty Images hide caption

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Spy Vs. Spies: Why Deciphering Putin Is So Hard For U.S. Intelligence
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Courtesy of Doubleday
From Blueprints To Betrayal: The Daring, And Downfall, Of A Cold War Spy
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Jason Rezaian, an Iranian-American correspondent for the Washington Post, faces four serious charges, including espionage, according to his lawyer. He's shown in 2013. Vahid Salemi/AP hide caption

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Seed corn sits in the hopper of a planter. Scott Olson/Getty Images hide caption

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