Iran told the U.N.'s nuclear watchdog agency Monday of its decision to resume some nuclear activities, the spokesman of Iran's top security decision-making body said. Iran has asked the International Atomic Energy Agency to instruct its inspectors in Iran to break the seals on central Iran's Isfahan Nuclear Conversion Facility so technicians can restart uranium reprocessing, Ali Agha Mohammadi, spokesman for Iran's Supreme National Security Council, told state-run radio. Reprocessing uranium is a step below uranium enrichment, which is to remain suspended, Mohammadi was quoted as saying by The Associated Press.