The U.S. Air Force's (USAF) bomber program, designed to field a replacement for the B-1 Lancer and B-2 Spirit by the late 2020s, is on track. That's a rarity in the world of military hardware procurement. Still, Congress is calling on the service to accelerate the program; USAF isn't budging."Once we get through design and get the first ones delivered, we can adjust production rates and maybe affect them that way, but we have to get through the engineering with solid discipline," Air Force acting acquisition executive Darlene Costello said during a House Armed Services panel on June 8.One major...