A new government audit calls out the Defense Department's delay in authorizing the F-35 to begin full-rate production, even though the aircraft program started development more than 20 years ago. “The delay in reaching this milestone stems largely from problems and delays developing the F-35 simulator needed for crucial testing,” the Government Accountability Office analysis concluded. The analysis was presented as prepared testimony for a Wednesday House Armed Services tactical air and land forces subcommittee hearing. Jon Ludwigson, who directs...