The U.S-Russian decisions about their nuclear arsenals are going to set the pace for the whole show. If we decide that we have to have 2,000 nuclear weapons in the year 2010, we are guaranteed that other poorer nations will say, as India has already said, that they don't want to live with nuclear apartheid. The two-tier world, to use a phrase beloved by the strategist, is an unstable world. It's got to go one way or the other. Either it's going to go to zero nuclear weapons, or it's going to go to a much fuller proliferation.