VIENNA — After keeping away inspectors for two years, Iran has invited the U.N. nuclear agency to a facility linked to a still unfinished reactor that could produce enough plutonium for up to two warheads a year, the agency's head said Thursday.
The invitation to visit the heavy water plant in the central city of Arak on Dec. 8 comes less than a week after a landmark nuclear deal between Iran and six world powers to freeze its nuclear program for six months in return for limited relief from economic sanctions.
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