IAEA chief urges Iran to keep its promises on nuclear program

By Shadia Nasralla MUNICH (Reuters) - Talks between Iran and the International Atomic Energy Agency (IAEA) have reached a "crucial" juncture and Tehran needs to provide urgent clarification on key aspects of its nuclear program, the IAEA's chief said on Saturday. Iran and world powers hope to clinch a final deal by June 30 that would end Western economic sanctions against Iran in return for curbs on its nuclear program. Parallel to those negotiations, the IAEA is also conducting i