North Korea’s centrifuge program poses both a horizontal and a vertical proliferation threat. It is an avenue for North Korea to increase the number and sophistication of its nuclear weapons and for it to proliferate to others who seek to build their own centrifuge programs. As a result, the priority is finding ways to either stop the program or to delay its progress through a combination of negotiations and sanctions. Procurement data obtained by governments and information from Pakistan, establish that North Korea is developing centrifuges. However, determining the centrifuge program’s status and the locations .