151027-N-LV331-003 ARLINGTON, Va. (Oct. 27, 2015) Secretary of the Navy (SECNAV) Ray Mabus showcases an unmanned aerial vehicle (UAV) while delivering remarks about the unmanned systems industry. Mabus was the keynote speaker at the Unmanned Systems Defense technology discussion and spoke about the role the Department of the Navy has in technology innovation. (U.S. Navy photo by Mass Communication Specialist 2nd Class Armando Gonzales/Released)