170502-N-PO203-044 NATIONAL HARBOR, Md. (May. 2, 2017) Rear Adm. David Hahn, chief of naval research, addresses the importance of maintaining a competitive advantage in science and technology during the Department of the Navy Office of the General Counsel 2017 annual training symposium held at the Gaylord National Resort and Conference Center. (U.S. Navy photo by John F. Williams/Released)