Nuclear Enterprise Speech Defense Secretary Ash Carter discusses the future of America's nuclear enterprise with service members at Minot Air Force Base, N.D., Sept. 26, 2016. Carter is visiting North Dakota and New Mexico to highlight the nation's nuclear enterprise, an area of critical importance to the long-term security. DoD photo SHARE: Download: Full Size (0.5 MB) Credit: DoD photo VIRIN: 160926-D-ZZ999-502.JPG Photo Gallery