"So long as the world remains a dangerous place with several nuclear weapons states, Obama must reassure its allies about the credibility of American guarantees of extended deterrence. Otherwise, reductions that create anxieties in other countries could lead them to develop their own weapons and thus increase the number of nuclear weapons states."

"The Nobel Peace Prize Committee cited Obama's dedication to arms control and nonproliferation when announcing last Friday his selection as this year's laureate. If he creates a positive, mutually reinforcing dynamic in the way he presents and sequences the two treaties [NPT and CTBT], it will give momentum and coherence to follow-on negotiations and the agreements that they produce."