US Air Force/Airman 1st Class Joshua M. Carroll
On December 2, the US Air Force unveiled the B-21 Raider, its first new bomber in over 30 years. Very little is known about the B-21's capabilities, and US officials plan to keep it under wraps. But it may be most valuable not for what it can do now but its ability to stay relevant for decades.What is the best feature of the B-21 Raider? It may not be the new...