This is WEEKEND EDITION from NPR News. I'm Scott Simon.Iran and six world powers ended another round of talks on Iran's nuclear program,noting that not enough progress has been made, but agreement is still possible.NPR's Peter Kenyon reports from New York thatIran's president now says that the pace of progress needs to pick up, if nuclear diplomacy is to have a chance.he optimistic scenario had this round of talks laying the groundwork for a breakthrough,with progress being overseen by top diplomats and heads of state in town for the U.N. General Assembly meetings.That never materialized.Secretary of State John Kerry and his Iranian counterpart, Mohammad Javad Zarif, did sit down again,but progress was described as slow, even by Zarif's boss, President Hassan Rouhani.The two men were deeply involved in Iran's previous effort to strike a nuclear deal with the West over a decade ago.Rouhani says in all his years being around such negotiations,he's never seen as serious an atmosphere as during these New York talks.He's heard here through an interpreter.So we do feel that the serious will does exist.But on this important path, every side must show courage.Rouhani injected a note of urgency as he called for both courage and flexibility.The remaining time for reaching an agreement is extremely short.Progress that has been witnessed in the last few days have been extremely slow.How to limit Iran's uranium enrichment capacity is a big issue,as is how and when to lift economic sanctions, if Iran agrees to nuclear restrictions and intrusive inspections
