'The stealthiest and most lethal aircraft ever to fly': the U.S. Air Force unveils new $693M bomber inspired by a courageous group of WWII pilots known as the 'Doolittle...
The US Air Force honors a famed group of WWII pilots, the 'Doolittle Raiders' with the unveiling of their most advanced and lethal aircraft to date: the B-21 Raider.
