Vladimir Putin

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** FILE ** Russia's President Vladimir Putin speaks during a media conference after a G-20 summit in St. Petersburg, Russia on Friday, Sept. 6, 2013. (AP Photo/Alexander Zemlianichenko)

Russia's President Vladimir Putin, center foreground, gestures as he walks by U.S. President Barack Obama, front row right, as he takes his place at a group photo outside of the Konstantin Palace in St. Petersburg, Russia on Friday, Sept. 6, 2013. World leaders are discussing Syria's civil war at the summit but look no closer to agreeing on international military intervention to stop it. (AP Photo/Ivan Sekretarev)

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Russian President Vladimir Putin gestures while speaking to John Daniszewski, the Associated Press's Senior Managing Editor for International News, during an AP interview at Putin's Novo-Ogaryovo residence outside Moscow, Russia, Tuesday, Sept. 3, 2013. Putin sought to downplay the current chill in the U.S.-Russian relations and said that the two countries need to cooperate on a range of issues in the interests of global stability, (AP Photo/Alexander Zemlianichenko)

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David Frost's volumes of interviews from notables such as the Beatles, Maria Callas, Muhammad Ali and Vladimir Putin contain a wealth of history.

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Russian President Vladimir Putin (right) and Deputy Prime Minister Dmitry Rogozin attend a meeting while visiting the Rostvertol helicopter manufacturing company in Rostov-on-Don, Russia, on Thursday, Aug. 22, 2013. (AP Photo/RIA-Novosti, Alexei Nikolsky, Presidential Press Service)

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President Obama and Russian President Vladimir Putin met in June in Northern Ireland. Mr. Obama has put off a scheduled meeting in Moscow following Mr. Putin's granting of asylum to NSA leaker Edward Snowden. (Associated Press)