<P> It is a very far reaching control which would eliminate the rivalry between nations in this field, which would prevent the surreptitious arming of one nation against another, which would provide some cushion of time before atomic attack, and presumably therefore before any attack with weapons of mass destruction, and which would go a long way toward removing atomic energy at least as a source of conflict between the powers . </P> <P> The term was also used in the introduction to the hugely influential U.S. government document known as NSC 68 written in 1950 . </P> <P> During a speech at Rice University on 12 September 1962, President John F. Kennedy spoke of not filling space "with weapons of mass destruction, but with instruments of knowledge and understanding ." The following month, during a televised presentation about the Cuban Missile Crisis on 22 October 1962, Kennedy made reference to "offensive weapons of sudden mass destruction ." </P> <P> An early use of the exact phrase in an international treaty was in the Outer Space Treaty of 1967, but no definition was provided . </P>

Who developed the ultimate weapon of mass destruction