'Iran proposes Arak reactor change to cut plutonium output'

"... The comment by Ali Akbar Salehi, head of Iran's atomic energy organisation, was the latest sign that a compromise may be possible over the Arak research reactor, which the West fears could yield weapons-usable material. Iran denies any such aim.The fate of the heavy-water plant, which has not yet been completed, is one of the central issues in negotiations between Iran and six major powers aimed at reaching a long-term deal on Tehran's nuclear programme by an agreed July 20 deadline..."