国际英语新闻:'Framework' Deal Reached at Iran Nuclear Talks

Iran and six world powers agreed to "key parameters" for a preliminary deal involving Tehran's nuclear program Thursday, following eight days of talks in Lausanne, Switzerland.

European Union foreign policy chief Federica Mogherini and Iran's Foreign Minister Mohammad Javad Zarif announced the measure, saying enough progress had been reached to continue the negotiations until a final deadline of June 30.

"Today we have taken a decisive step," Mogherini said. "We have reached solutions on key parameters for a comprehensive future nuclear deal."

The tentative agreement clears the way for talks on a future comprehensive settlement that should allay Western fears that Iran was seeking to build an atomic bomb and in return lift economic sanctions on the Islamic Republic.

President Barack Obama, speaking from the White House Rose Garden Thursday, said the U.S. has reached a "historic understanding with Iran." He called the agreement "a good deal, a deal that meets our core objective" of keeping Iran from obtaining a nuclear weapon.

Obama outlined the basics of the agreement, whose key details will be finalized over the next three months.

He said that the deal reached between Iran and the six world powers would keep Iran from being able to pursue a bomb either using plutonium or enriched uranium, and that it was the best possible defense to Tehran covertly obtaining a nuclear weapon.

Obama, who has invested significant political capital in the nuclear negotiations, said his administration would fully brief Congress on the efforts. The talks have strained the U.S. relationship with Israel, which sees Tehran as an existential threat, and deepened tensions with Congress.

Kerry touts 'solid foundation'

U.S. Secretary John Kerry, speaking from Lausanne, said the Iran deal's parameters ensure that all pathways to a nuclear weapon have been blocked.

"The political understanding with details that we have reached is a solid foundation for the good deal we are seeking," he told reporters, according to Reuters news agency. "We still have many technical details, other issues that need to be worked out."

According to a State Department news release, the framework deal — fiercely opposed by U.S. ally Israel – substantially reduces Iran's enrichment program for at least a decade. Among its more than 40 parameters, it cuts the Islamic Republic's number of installed centrifuges for enrichment from 19,000 to 6,000, reduces its stockpile of low-enriched uranium, and extends its "breakout time" – the period needed to acquire sufficient material for a weapon – to at least a year. It's estimated to be two or three months now.

Iran also has agreed to transparency for its nuclear program, allowing inspectors to monitor the supply chain, materials and facilities.

Different restrictions on Iran's nuclear program would continue for a quarter-century. In return for compliance, international sanctions will be gradually lifted.

"Iran will receive sanctions relief, if it verifiably abides by its commitments," the release says. 

The EU's Mogherini indicated that he was looking at fleshing out the framework deal. "We can now start drafting the text and annexes," said Mogherini, who has acted as a coordinator for the six powers: Britain, China, France, Germany, Russia and the United States.

Details meted out

Negotiations continued on a dispute over how much of the agreement to make public.

Its details are highly sensitive to both sides, especially Iran, which is worried about signing off on explicit targets to curb its nuclear program in the absence of a final settlement that would see economic sanctions lifted.

Zarif told reporters that once the International Atomic Energy Agency verifies that Iran has implemented all the key nuclear-related steps in the agreement, U.S. and EU nuclear-related sanctions would be suspended, calling that action "a major step forward."

The talks have centered on two positions: the U.S. and its five partners want to curb Iran's nuclear technologies so it cannot develop weapons; Tehran denies such ambitions but is negotiating because it wants economic sanctions imposed over its nuclear program to be lifted.