World Leaders Gather For G20 Summit In Pittsburgh

U.S. President Barack Obama (2nd L) welcomes French President Nicolas Sarkozy (L), as First Lady Michelle Obama (R) and Carla Sarkozy (2nd R) talk, at the welcoming dinner for G-20 leaders at the Phipps Conservatory on September 24, 2009 in Pittsburgh, Pennsylvania. Heads of state from the world's leading economic powers arrived today for the two-day G-20 summit, held at David L. Lawrence Convention Center, aimed at promoting economic growth. UPI/Win McNamee/Pool