Secretary Gates talks during Air Force Association convention
Secretary of Defense Robert M. Gates speaks during the Air Force Association's 2009 Air and Space Conference and Technology Exposition in Washington, D.C., Sept. 16, 2009. The three-day conference features more than 130 exhibitors and more than three dozen speakers and panelists, discussing topics of interest in Air Force and aerospace development. (Department of Defense Photo/Cherie Cullen)