Building of Centrifuges Resumed, Envoys Say

Iran is once again building centrifuges that can be used to make nuclear weaponry, breaking the U.N. nuclear watchdog agency’s seals on the equipment in a show of defiance against international efforts to monitor its program, diplomats said.

Iran has not restarted enriching uranium with the centrifuges, a step that would raise further alarm. The U.S. accuses Tehran of seeking to develop nuclear weapons and wants the United Nations Security Council to take up the issue. Iran says the centrifuges are part of a program to produce energy.