The International Atomic Energy Agency said Iran is now operating 4,920 centrifuges, which are used to enrich uranium from uranium hexafluoride gas, in a massive underground facility at Natanz. That represents an increase of some 1,000 devices since February. Another 2,132 devices are undergoing vacuum testing prior to being fed uranium hexafluoride gas. Iran has refused to take actions required to “exclude the possibility of military dimensions to Iran’s nuclear program,”
