The U.S. military has committed to more than $45 billion in offensive hypersonic strike capabilities, excluding likely procurement for cruise-missile variants of new ultrafast maneuvering weapons, according to a congressional audit of the new technology portfolio that provides a first picture of total planned acquisition costs. The Government Accountability Office, in a report mandated by Congress , further found that the Defense Department is not adopting leading practices in its development efforts across all six of its major hypersonic weapon...