Why It's So Hard For The UN To Strengthen The Treaty

US Secretary of State Hillary Rodham Clinton addresses the Nuclear Non-Proliferation Treaty (NPT) conference at United Nations headquarters in New York on Monday.When North Korea withdrew from the Nuclear Non-Proliferation Treaty (NPT) in 2003, it paid no cost for its move – and then went on to declare itself a nuclear power by testing two nuclear weapons.Closing that gap is one concrete step the US and some other countries would like to see come out of the nonproliferation discussions under way at the United Nations in New York. They want the 40-year-old NPT’s review conference, which occurs every five years, to create a set of consequences for any country that would resolve its questionable nuclear status by simply pulling out of the NPT.But getting such a proposal approved – or just about any other concrete action taken – by the 189 signatory states of the NPT won’t be easy.