Russian President Vladimir Putin walks next to U.S. President Barack Obama (R) as they arrive for the family picture event during the G20 summit in St.Petersburg September 6, 2013. REUTERS/Sergei ... more 
Russian President Vladimir Putin walks next to U.S. President Barack Obama (R) as they arrive for the family picture event during the G20 summit in St.Petersburg September 6, 2013. REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS BUSINESS) less 
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Reuters | Photo By SERGEI KARPUKHIN / REUTERS
Fri, Sep 6, 2013 8:41 AM EDT