That goes three quarters of the way towards answering the question, but not the whole way.

Does the Secretary of State not recall that, in July 1991, after two years of intense Conservative pressure, his right hon. Friend the Member for Manchester, Gorton (Mr. Kaufman) committed his party to keeping some nuclear weapons, as long as other countries had them? Will he now reaffirm that commitment, and confirm that, no matter what sort of multilateral negotiations take place in the future, he will never agree to arrangements whereby we would get rid of all our nuclear weapons while other countries still possessed some with which we could be threatened?