Vladimir Putin

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** FILE ** Russian President Vladimir Putin gestures while speaking during a media conference after a G-8 summit at the Lough Erne golf resort in Enniskillen, Northern Ireland, on Tuesday, June 18, 2013. (Associated Press)

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Russian President Vladimir Putin, left, looks toward British Prime Minister David Cameron, center, and U.S. President Barack Obama during group photo with G-8 leaders on Tuesday, June 18, 2013, in Enniskillen, Northern Ireland. (AP Photo/Evan Vucci)

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British Prime Minister David Cameron, left, shakes hands with Russian President Vladimir Putin during a press conference at 10 Downing Street in London, Sunday, June 16, 2013. Cameron had talks with Russian President Putin on the Syrian crisis amid fears that differences between Moscow and the West are pushing the two sides toward a new Cold War. (AP Photo/Anthony Devlin)

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Russian President Vladimir Putin is expected to meet privately with President Obama during the G-8 summit in Northern Ireland, but maybe not at a pub. (Associated press)

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Russian President Vladimir Putin speaks at a meeting with representatives of the G-20 Civil Summit at the Novo-Ogaryovo residence outside Moscow on Friday, June 14, 2013. (AP Photo/Yuri Kochertkov, Pool)

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Valentina Matviyenko (left), the speaker of Russia's Senate, and Russian President Vladimir Putin attend a State Council meeting in the Kremlin in Moscow on Friday, May 31, 2013. (AP Photo/Yuri Kadobnov, Pool)

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A wide-ranging ban on smoking, signed into law by Vladimir Putin, has taken effect in Russia. (Associated Press)

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Russian President Vladimir Putin meets with Russian entrepreneurs while visiting a SIBUR Holding petrochemical plant in Voronezh, 534 km (334 miles) south of Moscow, Russia, Thursday, May 23, 2013. (AP Photo/RIA-Novosti, Mikhail Klimentyev, Presidential Press Service)