The unmanned surface vessel Powervent, with the U.S. Navy's Naval Surface Warfare Center Combatant Craft Division, speeds across the water while equipped with cameras, computer systems and non-lethal weapons during the Spiral 1 experiment for Trident Warrior 2012 at Fort Eustis, Va., Jan. 31, 2012. Trident Warrior, sponsored by Commander U.S. Fleet Forces Command, is a program that experiments advanced maritime initiatives in an operational environment to improve capabilities available to the fleet. (U.S. Navy photo by Mass Communication Specialist 3rd Class Betsy Knapper/Released)