The U.N. nuclear agency says North Korea plans to reinsert nuclear material into its Yongbyon reactor. Mohamed ElBaradei, the chief of the International Atomic Energy Agency, also told the IAEA board on Wednesday that IAEA inspectors removed agency seals from the reactor earlier in the day, according to an IAEA statement. He was quoted as saying by the Associated Press that the North Korea would reintroduce the nuclear material within a week.