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Police officers detain political activist Roman Dobrokhotov during the unauthorized meeting to mark Russian President Vladimir Putin's birthday in Moscow, Sunday Oct. 7, 2012. Vladimir Putin turns 60-years old on Sunday, Oct. 7, 2012, and has recently sought to demonstrate his youthful vigor by many personal endeavors, but while he has shown creativity in his action-man stunts, the Russian president seems surprisingly vulnerable to the vagaries of oil prices. (AP Photo/Sergey Ponomarev)