Iran, world powers reach initial deal on reining in Tehran's nuclear program
Iran and world powers reached a framework agreement on April 2 on curbing Iran's nuclear program for at least a decade, a step towards a final pact that could end 12 years of brinkmanship, threats and confrontation.
The tentative agreement, after eight days of marathon talks in Switzerland, clears the way for negotiations on a settlement aimed at allaying Western fears that Iran was seeking to build an atomic bomb and in return lift economic sanctions on the Islamic Republic.
The framework is contingent on reaching an agreement by June 30. All sanctions on Iran remain in place until a final deal.
President Barack Obama described the agreement as a "historic understanding with Iran" and compared it to nuclear arms control deals struck by his predecessors with the Soviet Union that "made our world safer" during the Cold War. He also cautioned, however, that "success is not guaranteed."
Many details still need to be worked out. Diplomats close to the negotiations said the deal was fragile. It could not be ruled out that the understandings reached could collapse between now and June 30. Experts believe it will be much harder to reach a final deal than it was to agree the framework accord.
Under the outline deal, Iran would shut more than two-thirds of its installed centrifuges capable of producing uranium that could be used to build a bomb, dismantle a reactor that could produce plutonium, and accept intrusive verification.
The negotiations between Iran and six powers - Britain, China, France, Germany, Russia and the United States - blew past a self-imposed March 31 deadline with no certainty that they would not end in failure.