170104-N-HW977-108 NORCO, Calif. (Jan. 4, 2017) David Brinkley, left, Christopher Flores, middle, and Henry Varela, all Range Systems Engineering Department engineers, walk past completed 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)