Photo by: Esteban Felix

Leaders of the G-20, front, from left, Argentina’s President Cristina Fernandez, Indonesia’s President Susilo Bambang Yudhoyono, President Barack Obama, China’s President Hu Jintao, and Mexico's President Felipe Calderon prepare to pose for a photo at the G-20 Summit in Los Cabos, Mexico, Monday, June 18, 2012. (AP Photo/Esteban Felix)