CARTWRIGHT RESPONSE U.S. Marine Corps Gen. James E. Cartwright, vice chairman of the Joint Chiefs of Staff, discusses evolving national security and missile defense at the 8th Annual U.S. Missile Defense Conference in Washington, D.C., March 22, 2010. Cartwright was one of many defense officials to answer questions regarding missile defense. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 200641-C-XSE52-132.jpg Photo Gallery