Air Force Secretary Heather Wilson estimates a pact she signed with her Army and Navy counterparts pledging cooperation on hypersonic technology development will accelerate her service's plans to field an air-launched, ultra-fast, maneuvering weapon by five years -- an agreement that requires the Air Force to feed the results of its new prototyping projects across the Defense Department. Wilson, asked on Sept. 18 during a press conference at the Air Force Association annual meeting what the service was doing in...