We believe he has, in fact, reconstituted nuclear weapons.
If you start getting instability in large powers with nuclear weapons, that's not a good day.
The nuclear weapon is obsolete. I want to get rid of them all.
Solar, for example - which has typically been thought of as so expensive - is cheap when compared with, for example, the cost of cleaning up the Fukushima nuclear disaster and the Gulf.
The more patient we are, the closer the Iranians get to a nuclear weapon.
One of our gravest concerns is the entry of a nuclear device or materials into the U.S.
What are the implications of a China that may be on nuclear parity with the United States?
Except for fools and madmen, everyone knows that nuclear war would he an unprecedented human catastrophe.
We have heard the rationales offered by the nuclear superpowers. We know who speaks for the nations. But who speaks for the human species? Who speaks for Earth?
The main reason we are held hostage by the most destructive technology on earth is simple: the complete lack of international resolve to ban nuclear weapons and banish them from the arsenals of the world.
Getting ready for a global pandemic is every bit as important as nuclear deterrence and avoiding a climate catastrophe.
As long as we rationalize nuclear weapons as "necessary" in order to save American lives, then nuclear weapons will never be gotten rid of.
I see nuclear weapons as the ultimate evil, not just evil, but the ultimate evil with the potential to make life unlivable on this planet.
The greatest threat facing humanity is a radical Islamist regime meeting up with nuclear weapons.
One of the deadliest issues is the nuclear radiation pouring from every nuclear power station in the world. With every atomic process and experimentation that is going on, high-level nuclear radiation is pouring out at the highest level.
The United States will do what we must to prevent Iran from obtaining a nuclear weapon.
The single biggest threat that we face is a nuclear weapon or some weapon of mass destruction. What that means is that we have to be extraordinarily aggressive and vigilant in controlling nuclear proliferation.
The greatest threat to U.S. and global security is no longer a nuclear exchange between nations, but nuclear terrorism by violent extremists and nuclear proliferation to an increasing number of states.
For the first time, preventing nuclear proliferation and nuclear terrorism is now at the top of America's nuclear agenda.
Nuclear terrorism is one of the most serious threats of our time. Even one such attack could inflict mass casualties and create immense suffering and unwanted change in the world forever. This prospect should compel all of us to act to prevent such a catastrophe.
Nuclear disarmament is the only sane path to a safer world.
You can guarantee that mining uranium will lead to nuclear waste. You can't guarantee that uranium mining will not lead to nuclear weapons.
Nuclear power has died of an incurable attack of market forces and is way beyond any hope of revival, because the competitors are several-fold cheaper and are getting rapidly more so.
Our immediate striving must be aimed at preventing what, in the present situation, is the greatest threat to the very survival of mankind, the nuclear threat.
We should put away the militaristic outlook. The U.S. should start talking about disarmament, nuclear disarmament, of the region.
