A new U.N. report says Iran may have expanded its stockpile of nuclear material for uranium enrichment. In a quarterly report on Iran’s nuclear activities, the International Atomic Energy Agency says Iran has doubled the number of enrichment machines it stores in an underground bunker. In Washington, White House spokesperson Jay Carney said Iran is violating its international requirements.

White House spokesperson Jay Carney: “We are closely studying the details of the report. But broadly speaking, it is not surprising that Iran is continuing to violate its obligations. As the report illustrates, we are in a position to closely observe Iran’s program and to detect any effort by Iran to begin production of weapons-grade uranium. And just to reiterate, the president has made clear frequently that he is determined to prevent Iran from obtaining a nuclear weapon, and he has led an unprecedented effort to pressure Iran to live up to its obligations.”