US strikes destroyed only one of three Iranian nuclear sites

The U.S. strikes targeted three enrichment sites in Iran: Fordo, Natanz and Isfahan. U.S. officials believe the attack on Fordo, which has long been viewed as a critical component of Iran’s nuclear ambitions, was successful in setting back Iranian enrichment capabilities at that site by as much as two years. U.S. officials knew before the airstrikes that Iran had structures and enriched uranium at Natanz and Isfahan that were likely to be beyond the reach of even America’s 30,000-pound GBU-57 “bunker buster” bombs (Read more at NBC News).