Negotiations with Iran, especially, will not be easy under any circumstances, but I suspect that they might be somewhat less difficult if the nuclear-weapon states could show that their requests are part of a broader effort to lead the world, including themselves, toward nuclear disarmament. Preventing further proliferation is essential, but it is not a recipe for success to preach to the rest of the world to stay away from the very weapons that nuclear states claim are indispensable to their own security.

For some twenty years the window that opened at the end of the Cold War has been allowed to hang flapping in the wind. It is high time that the five nuclear-weapon states take seriously their commitment to negotiate toward nuclear disarmament.