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			 For days Iran, the United States, Britain, France, Germany, Russia 
			and China have been holding negotiations to break an impasse in 
			negotiations aimed at stopping Tehran having the capacity to develop 
			a nuclear bomb in exchange for an easing of international sanctions 
			that are crippling its economy. 
			 
			But officials at the talks in the Swiss city of Lausanne cautioned 
			that attempts to reach a framework accord could yet fall apart. 
			[ID:nL6N0WV09H] 
			 
			German Foreign Minister Frank-Walter Steinmeier said there had been 
			"some progress and some setbacks in the last hours". 
			 
			"I can't rule out that there will be further crises in these 
			negotiations," he told reporters in Lausanne. 
			 
			In addition to U.S. Secretary of State John Kerry, Iranian Foreign 
			Minister Mohammad Javad Zarif and Steinmeier, British Foreign 
			Secretary Philip Hammond, French Foreign Minister Laurent Fabius, 
			Russia's Sergei Lavrov and China's Wang Yi gathered at a 
			19th-century hotel overlooking Lake Geneva to try to end the 
			deadlock in the talks. 
			  
			  
			 
			The ministers met for an hour and then broke of their discussions. 
			They were expected to meet again later on Monday. 
			 
			Officials said the talks could run at least until the deadline of 
			midnight on Tuesday or beyond. If there was a framework agreement 
			struck in Lausanne, officials said the meeting might relocate to 
			Geneva for a ceremony. 
			 
			The six powers want more than a 10-year suspension of Iran's most 
			sensitive nuclear work. Tehran, which denies it is trying to develop 
			a nuclear weapons capability, demands in exchange for limits on its 
			atomic activities a swift end to international sanctions. that are 
			crippling its economy. 
			 
			While some issues being discussed in the negotiations have been 
			resolved, there are several differences on which the two sides have 
			been unable to reach agreement. Both Iran and the six have floated 
			compromise proposals in an attempt to make an accord possible. 
			 
			One sticking point concerns Iran's demand to continue with research 
			into newer generations of advanced centrifuges that can purify 
			uranium faster and in greater quantities than the ones it currently 
			operates for use in nuclear power plants or, if very highly 
			enriched, in weapons. 
			 
			Another question involves the speed of removing United Nations 
			sanctions on Iran. A senior U.S. official said on Sunday there were 
			other unresolved issues, but expected those would fall into place if 
			the big sticking points could be worked out. 
			  Even if Iran and the six powers reach a framework agreement by their 
			end-March deadline, officials close to the talks say it would be 
			very preliminary and could still fall apart when the two sides 
			attempt to agree on all the technical details for a comprehensive 
			accord by June 30. 
			 
			There were several examples of the progress and setbacks Steinmeier 
			referred to. Western officials said Iran suggested it would be 
			willing to accept keeping fewer than 6,000 centrifuges in operation, 
			down from its current figure of nearly 10,000, and to ship most of 
			its enriched uranium stockpiles to Russia. 
			 
			But senior Iranian negotiator Abbas Araqchi told reporters 
			dispatching stockpiles abroad "was not on Iran's agenda." 
			 
			
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			A senior U.S. State Department official said there had been no 
			decisions on the stockpiles. 
			
			"The issue of how Iran's stockpile would be disposed of had not yet 
			been decided in the negotiating room, even tentatively," the 
			official said in a statement. 
			 
			"There is no question that disposition of their stockpile is 
			essential to ensuring the program is exclusively peaceful...The 
			metric is ensuring the amount of material remaining as enriched 
			material will only be what is necessary for a working stock and no 
			more." 
			 
			Another Western official said there were "other options" for dealing 
			with the stockpile issue it was not shipped to Russia, such as 
			downblending to make it less pure. 
			 
			It was not clear if the Iranian rejection of certain proposals it 
			had previously indicated might be acceptable was a sign that Tehran 
			might be getting cold feet. 
			 
			"It's not clear if these are the usual negotiations tactics to raise 
			the stakes or if they just don’t have enough wiggle room to move 
			ahead," said a Western diplomat. "We'll see today." 
			 
			On the issue of U.N. Security Council sanctions, officials close to 
			the talks voiced concerns that the five permanent veto-wielding 
			council members could object to plans to strip away some of the U.N. 
			measures in place since 2006, albeit for different reasons. 
			
			
			  
			
			Britain, France and the United States want any removal of U.N. 
			sanctions to be automatically reversible, but the Russians dislike 
			the idea of automaticity because it would weaken their veto power, a 
			Western official said. 
			
			Western officials also voiced concerns that Russia, itself under 
			U.S. and European Union sanctions over Ukraine, might have 
			reservations about lifting energy sanctions over fears that bringing 
			Iranian oil back into the market would further depress the price of 
			oil. 
			 
			Despite the deep disagreements on several points, Western officials 
			said the two sides had been closing in on a preliminary deal that 
			could be summarized in a brief document which may or may not be 
			released. 
			 
			(Additional reporting by Stephanie Nebehay; editing by Anna Willard) 
			
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