Russia

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Iranian Foreign Minister Mohammad Javad Zarif, left, laughs with his Russian counterpart Sergey Lavrov after the meeting of foreign ministers from Caspian countries, in Moscow, Russia on Tuesday, April 22, 2014. (AP Photo/Ivan Sekretarev)

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Columbus Blue Jackets' Artem Anisimov, left, of Russia, tries to clear the puck as Pittsburgh Penguins' Kris Letang defends during the second period of a first-round NHL playoff hockey game Monday, April 21, 2014, in Columbus, Ohio. (AP Photo/Jay LaPrete)

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Pittsburgh Penguins' Sidney Crosby, left, and Columbus Blue Jackets' Nikita Nikitin, of Russia, fight for a loose puck during the first period of a first-round NHL playoff hockey game Monday, April 21, 2014, in Columbus, Ohio. (AP Photo/Jay LaPrete)

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Columbus Blue Jackets' Sergei Bobrovsky (72), of Russia, makes a save as teammate Jack Johnson, right, tries to clear Pittsburgh Penguins' Lee Stempniak from in front of the net during the first period of a first-round NHL playoff hockey game Monday, April 21, 2014, in Columbus, Ohio. (AP Photo/Jay LaPrete)

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Pittsburgh Penguins' Evgeni Malkin, right, of Russia, and Columbus Blue Jackets' Nick Foligno chase a loose puck during the first period of a first-round NHL playoff hockey game Monday, April 21, 2014, in Columbus, Ohio. (AP Photo/Jay LaPrete)

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Columbus Blue Jackets' Nikita Nikitin, left to right, of Russia, Boone Jenner, Ryan Johansen and Dalton Prout celebrate their goal against the Pittsburgh Penguins during the first period of a first-round NHL playoff hockey game Monday, April 21, 2014, in Columbus, Ohio. (AP Photo/Jay LaPrete)

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Digging in: Pro-Russia separatists occupying government buildings in eastern Ukraine show no signs of budging from their positions. In Donetsk, separatists have declared an independent "people's republic." (ASSOCIATED PRESS)