The Air Force's fiscal year 2018 budget request sheds new light on how much the service expects to spend over the next five years on research and development to replace its ground- and air-launched nuclear missiles, after adjusting its figures to reflect new cost estimates. The Ground-Based Strategic Deterrent program, which will replace the current Minuteman III intercontinental ballistic missiles based in Montana, North Dakota and Wyoming, needs $215.7 million in FY-18 compared to the Air Force's earlier estimate of...