Russia’s President Putin welcomes U.S. President Obama before the first working session of the G20 Summit in Constantine Palace in Strelna near St. Petersburg

Russia’s President Vladimir Putin (L) welcomes U.S. President Barack Obama before the first working session of the G20 Summit in Constantine Palace in Strelna near St. Petersburg, September 5, 2013. REUTERS/Grigory Dukor (RUSSIA – Tags: POLITICS) – RTX1388I