The USA was designing a gigantic space battleship propelled by blowing up nukes behind it. It would be constructed by shipbuilders, and launched on a rocket where just the booster is twice the size of the Saturn V. It would have carried enough nuclear missiles to obliterate a continent, as well as five-inch naval guns, six hypersonic landing boats, and several hundred Casaba howitzers (you know, the weapons that shoot NUCLEAR FLAME). A scale model was built and shown to President Kennedy. When he saw how powerful it was, he ordered that the model be destroyed and the project closed because he was horrified by it.