Are these goals realistic and within reach? I do believe they are. But then three steps are urgently required. First, keep nuclear and radiological material out of the hands of extremist groups. ... we are in a race against time. Second, tighten control over the operations for producing the nuclear material that could be used in weapons. Under the current system, any country has the right to master these operations for civilian uses. But in doing so, it also masters the most difficult steps in making a nuclear bomb. To overcome this, I am hoping that we can make these operations multinational - so that no one country can have exclusive control over any such operation.... Third, accelerate disarmament efforts. We still have eight or nine countries who possess nuclear weapons. We still have 27,000 warheads in existence. I believe this is 27,000 too many.

As long as some of us choose to rely on nuclear weapons, we continue to risk that these same weapons will become increasingly attractive to others. I have no d…

A good start would be if the nuclear-weapon states reduced the strategic role given to these weapons. More than 15 years after the end of the Cold War, it is i…

There are three main features to this changing landscape: the emergence of an extensive black market in nuclear material and equipment; the proliferation of nu…

As long as some of us choose to rely on nuclear weapons, we continue to risk that these same weapons will become increasingly attractive to others. I have no d…

Unilateral preemption should not in any way be the model for how we conduct international relations... [It] brings us into very dangerous territory and it coul…

I am not proud of the part I played in it. I did it because it was necessary for the safety of this country. That's why I am such a great exponent of stopping …