Air Force Secretary Heather Wilson told Senate appropriators this week the cost to base the new B-21 at a location that doesn't currently house bombers will likely be about $450 million per base, which is part of the reason the service plans to assign the aircraft at places that already have much of the infrastructure required to house it. The Air Force announced on May 3 its preliminary plans to assign the B-21 to Dyess Air Force Base, TX, Ellsworth...