The G20 Summit

1
Russia's President Vladimir Putin, center foreground, gestures as he walks by U.S. President Barack Obama, front row second right, as he takes his place at a group photo outside of the Konstantin Palace in St. Petersburg, Russia, Sept. 6, 2013.

2
U.S. President Barack Obama, right, walks with Germany's Chancellor Angela Merkel prior to a group photo of G-20 leaders outside of the Konstantin Palace in St. Petersburg, Russia, Sept. 6, 2013.

3
An image of U.S. President Barack Obama drinking out of a paper cup is shown on a large screen in the media center of a G-20 summit in St. Petersburg, Russia, Sept. 6, 2013.

4
British Prime Minister David Cameron speaks during a media conference after a G-20 summit in St. Petersburg, Russia on Friday, Sept. 6, 2013.