Russia's UN Ambassador Vitaly Churkin, center, current president for the U.N. Security Council, confers before leading council members on a vote for tough new sanctions against North Korea for its latest nuclear test, during a meeting at U.N. headquarters Thursday, March 7, 2013. The unanimous vote by the U.N.'s most powerful body sparked a furious Pyongyang to threaten a nuclear strike against the United States. (AP Photo/Bebeto Matthews) Photo: Bebeto Matthews
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