LEADERS' MEETING U.S. Deputy Defense Secretary Ashton B. Carter, left, former U.S. Defense Secretary William J. Perry, center, and former U.S. Secretary of State George P. Shultz, right, visit together following Carter's speech at the North American Forum conference in Ottawa, Ontario, Oct. 13, 2012. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 284787-R-UUI12-347.jpg Photo Gallery