Despite the United States' adoption of the "3+2 strategy" that would whittle 12 nuclear weapon types down to five, there is currently no plan to do away with what would be the sixth nuclear weapon type -- the bunker-busting B61-11 nuclear bomb. According to the general in charge of the Air Force's nuclear mission and the principle deputy administrator of the National Nuclear Security Administration, there are no agreed upon plans to retire the B61-11 even as the other five...