SINGAPORE LEADER U.S. Defense Secretary Robert M. Gates, right, escorts Singapore Deputy Prime Minister and Defense Minister Teo Chee Hean into the Pentagon, March 16, 2010. The two defense leaders will hold security discussions on a broad range of global and regional issues. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 104122-N-BCT12-751.jpg Photo Gallery