SHARED LAUGH U.S. Sen. Dick Lugar of Indiana, and Defense Secretary Leon E. Panetta share a laugh outside the Nunn-Lugar Cooperative Threat Reduction Symposium at National Defense University in Washington, D.C., Dec. 3, 2012. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 371424-N-GJM02-840.jpg Photo Gallery