Air Force officials expect to formally select Raytheon by the end of the month as the service’s lead contractor to develop and build ground terminals that will enhance nuclear command-and-control capabilities at bomber bases. That program, called Global Aircrew Strategic Network Terminal (ASNT), is designed to be compatible with the Advanced Extremely High Frequency communications satellite constellation. But it differs in complexity and in requirements from another family of AEHF-compatible terminals, called FAB-T, the Air Force has spent years developing,...