Iran, Russia reach deal on uranium enrichment

BUSHEHR, Iran -- Iran and Russia agreed in principle Sunday to establish a joint uranium enrichment venture, a breakthrough in talks on a U.S.-backed Kremlin proposal aimed at easing concerns that Tehran wants to build nuclear weapons.\nBut further negotiations on the details lay ahead, and it was not known whether Iran will entirely give up enrichment at home, a top demand of the west.\nThe deal -- announced by the two countries' top nuclear chiefs after a visit to a Russian-built nuclear plant in southern Iran -- could deflect any move by the U.N. nuclear watchdog agency at its March 6 meeting to recommend the Security Council consider action on Iran.\nIran's deputy nuclear chief, Mohammad Saeedi, warned that the deal would be off if the International Atomic Energy Agency refers Iran to the Security Council, a step that could lead to economic or political sanctions.\n"If talk of referral is raised, then all ways will be blocked," Saeedi said.\nRussian participation in the project is aimed at ensuring that no enriched material is secretly diverted to a weapons program.\nThe United States accuses Iran of seeking to develop nuclear weapons but has backed the proposal if it means enrichment would take place entirely in Russia. Iran denies any intention to build weapons, saying it aims only to produce nuclear energy.\nU.S. National Security Adviser Stephen Hadley was cautious about the deal.\n"It's too soon to say," he said on CNN's "Late Edition." "In any of these arrangements, the devil is in the details. We'll just have to see what emerges."\nIt appeared that the issue of Iran's domestic enrichment was still unresolved between Tehran and Moscow.\nThe head of Iran's nuclear agency, Vice President Gholamreza Aghazadeh, and his Russian counterpart Sergei Kiriyenko avoided addressing the issue in a short news conference announcing the agreement Sunday. The two spoke in Bushehr, the site of Iran's first reactor, built with Russian aid and due to be inaugurated this year.\nRussia, a top ally of Iran, has been pressing Tehran to have all its uranium enrichment take place on Russian soil -- and had made the deal contingent on Iran's formally calling off its domestic enrichment program, based in the central city of Natanz.