 It attempted to redesign the B-70 Valkyrie high-altitude supersonic bomber project as a platform for reconnaissance and launch of standoff missiles such as the Skybolt; however, Skybolt was cancelled in 1962 after testing failures.A 1963 study stated "Long-range technical considerations, of course, militate against the perpetuation of the manned bomber".In the 21st century, the phrase was reused to refer to suicide bombers and the inability of legislation or security to stop someone intent on blowing something up.