>I have a question for you, because personally I agree with the goal of a nuclear weapons free world. If Russia and the U.S. agree to all of the items in the list, what about all of the other nations? How would that be enforced since it cannot be enforced now? If you were India, would you trust Pakistan? If you were Israel, would you trust Iran? It can go both directions of course, but I'm just giving examples. Right now, there is no 'enforcement.'

Clearly, this needs international agreements - unilateral action can even be dangerous.

I don't know exactly what Obama is proposing, but since the U.S. already has more investments and weapons than any other country - and other countries might also distrust the U.S. - it would make sense to unilaterally reduce this partially, reduce spending on new weapons research, etc. However, it would not make sense to eliminate weapons completely, not without having serious talks with other countries first.