Iran and the U.S. concluded a new round of talks Saturday in Rome in what Iranian officials described as a step forward, and opening the way for further talks next week. Iran was planning before the Saturday meeting to set out a series of proposals for a new nuclear pact. In addition to the guarantees, the Iranians were expected to discuss ways that their current stockpile of enriched uranium could be managed under a deal. They also plan to discuss a process for lifting economic sanctions and their hope to organize a high-level visit in Washington, Iranian and Arab officials say. 

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