Since India and Pakistan both have nuclear weapons, this may be the highest-risk strategy of all.
It was not that they wanted to remove any chance that they would have nuclear weapons ever.
"We believe as a matter of policy it is unacceptable for Iran to have nuclear weapons, " she said.
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UN's nuclear watchdog, visited Israel , which is thought to have nuclear weapons though it doesn't acknowledge them.
It essentially says: Those countries that have nuclear weapons can keep them, but no one else can join the club.
Possible alternatives include ending the requirement to have nuclear weapons on submarines at sea round-the-clock, or using different submarines and cruise missiles.
They have neighbors who are not reliable, trusted friends, who either have nuclear weapons or are clearly seeking to acquire nuclear weapons.
While Japan was the victim of nuclear holocaust it did not have nuclear weapons and was not in a position to retaliate.
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Twenty years ago, Kazakhstan made a decision not to have nuclear weapons.
Both countries have nuclear weapons and have fought three full-scale wars.
Neither Russia nor the EU want Iran to have nuclear weapons.
We still have issues of how can we reduce nuclear weapons among those countries that currently have nuclear weapons, consistent with the long-term obligations of the NPT.
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America and Russia have pulled back from the brink, but India and Pakistan have increased the danger and the more nations that have nuclear weapons the greater the probability of war between them.
Both countries have nuclear weapons and ballistic missiles.
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Mr. MICHAEL NACHT (Dean, Goldman School of Public Policy, University of California at Berkeley): We maintain a nuclear arsenal to reassure our friends that they are secure and therefore reduce the arguments in their governments that they should themselves have nuclear weapons.
With regard to the nuclear posture, we reaffirmed, as we did in Lisbon, that NATO will remain a nuclear alliance for as long as nuclear weapons exist, and as long as we have nuclear weapons that those weapons will be safe, secure and effective.
Our allies either already have nuclear-weapons technology or the means to acquire it if they wish.
As both the only nation to have used nuclear weapons, and as a strong proponent of non-proliferation, the United States has long embodied a stark but inevitable contradiction.
The two countries have fought three wars in the past 50 years and are both thought to have secretly built nuclear weapons.
The 1998 tests have since given nuclear weapons an extended half-life.
As the only country to have suffered a nuclear attack, Japanese officials have long opposed the use of nuclear weapons.
As states possessing nuclear weapons, we have today put forth a common vision of a world without nuclear weapons, and decided to lead global efforts for nonproliferation and universal and non-discriminating global nuclear disarmament.
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The nuclear powers have long said they will not use their weapons against non-nuclear opponents, but they have refused to make it a legally binding promise.
In reply, American officials have said they believe North Korea already has one or two nuclear weapons, which have come from a secret programme that they long suspected was in operation.
Nuclear weapons have helped to encourage the crisis but are also, for the moment, helping to contain it.
Many have grown complacent about nuclear weapons and that includes people in the military and the policymakers in Washington.
The bottom line is that nuclear weapons have helped provide a stabilizing force in the world for more than 55 years.
We have long relied on nuclear weapons to deter potential adversaries.
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