U.S. Secretary of State John Kerry negotiates with Iranian foreign minister Javad Zarif in Vienna, August 2014. Photo: Wikimedia

ABC News/AP – Two days of tough talks to limit Iran’s nuclear program failed Monday to make major headway toward a final deal —a foreboding sign for years of negotiations that are set to expire in less than two weeks.

U.S. officials resisted describing how much — or how little — progress was made during the high-level discussions in Oman among U.S. Secretary of State John Kerry, European Union policy adviser Catherine Ashton and Iranian Foreign Minister Javad Zarif.

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