The logic of the nuclear weapon States, frankly, does not pass the sniff test. It forgets the grave uncertainty out of which the nuclear non-proliferation treaty was born, which some in this House will still remember. The world was in the grip of the Cold War, an existential threat in the form of a nuclear arms race, and two heavily armed nuclear powers playing out their competition in real time, but none of that stood in the way of Kennedy and Khrushchev and, in another decade, of Reagan and Gorbachev taking the opportunity to lead. 