Democratic presidential candidate Hillary Clinton listens to an attendee's question during a discussion on national security at the Virginia Air and Space Center on June 15, 2016 in Hampton, Virginia. / AFP PHOTO / Mandel NganMANDEL NGAN/AFP/Getty Images ** OUTS - ELSENT, FPG, CM - OUTS * NM, PH, VA if sourced by CT, LA or MoD **