170104-N-HW977-094 NORCO, Calif. (Jan. 4, 2017) Range Systems Engineering Department engineers Henry Varela, left, and Christopher Flores work on touch-screen interface following complete mockup of replacement Joint Warfare Assessment Laboratory (JWAL) screen at Naval Surface Warfare Center (NSWC), Corona Division. The new screen, consisting of 180 LED panels, will upgrade a 12-screen rear projection system. (U.S. Navy photo by Greg Vojtko/Released)