Russia G20 Summit

September 5, 2013 - 4:36 PM
U.S. President Barack Obama, center, walks with other G-20 leaders in the background as they depart for a dinner at Peterhof Palace in St. Petersburg, Russia on Thursday, Sept. 5, 2013. The threat of missiles over the Mediterranean is weighing on world leaders meeting on the shores of the Baltic this week, and eclipsing economic battles that usually dominate when the G-20 world economies meet. (AP Photo/Alexander Zemlianichenko)