Deputy Secretary Carter and former Secretary Perry listen to former Secretary Shultz Deputy Secretary of Defense Ashton B. Carter, left, and former Secretary of Defense William Perry listen to former Secretary of State George P. Shultz, right, as he makes a point during a conversation at the North American Forum conference in Ottawa, Canada, on Oct. 13, 2012. Carter earlier addressed the audience of the conference. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 809966-Q-WRP59-623.jpg Photo Gallery