Security Speech Air Force Gen. Paul J. Selva, vice chairman of the Joint Chiefs of Staff, answers a question at the Brookings Institution in Washington, D.C., Jan. 21, 2016. The Center for 21st Century Security and Intelligence hosted the event, which focused on efforts to keep the armed forces at the forefront of innovation. DoD photo by Army Staff Sgt. Sean K. Harp SHARE: Download: Full Size (1.73 MB) Credit: Staff Sgt. Sean Harp VIRIN: 160121-D-HU462-039.JPG Photo Gallery