An annual review of the Defense Department's most expensive weapon systems by the Government Accountability Office detailed numerous shortfalls in the development of aircraft and space programs, illuminating underlying causes for delays and climbing costs. GAO’s review , which concluded in January, examined a total of 63 weapon systems across DOD. The report identified specific flaws in the development of aircraft like the KC-46A airborne tanker and HH-60W helicopter and space systems such as the Deep Space Advanced Radar Capability...
