Foreign Policy reports that the U.S. believes Iran is cheating on U.N. nuclear sanctions. “The United States has privately accused Iran of going on an international shopping spree to acquire components for a heavy-water reactor that American officials have long feared could be used in the production of nuclear weapons-grade plutonium,” reports Colum Lynch.

“A U.S. delegation informed a U.N. Security Council panel of experts monitoring Iranian sanctions in recent months that Iranian procurement agents have been increasing their efforts to illicitly obtain equipment for the IR-40 research reactor at the Arak nuclear complex.