Air Force Col. Steven M. Shepro, 316th Wing commander, greets South African President Kgalema Motlanthe at Andrews Air Force Base, Md., Nov. 14, 2008. The South African president was in town for the two-day G20 Summit at the White House in Washington. The summit, hosted by U.S. President George W. Bush, brought together world leaders to discuss the increasing global financial crisis, its causes and efforts to resolve it. (U.S. Air Force photo by Senior Airman Melissa Stonecipher)