US Secretary of State John Kerry said on Saturday on the eve of fresh talks with Iran over its nuclear-power program that it was unclear whether an interim could be deal reached by the end of the month. 'I can't tell you whether or not we can get a deal,' Kerry told a news conference. The United States and five other major powers will resume negotiations with Iran in Lausanne, Switzerland on Sunday ahead of a deadline at the end of March for a framework deal, with a final agreement in June.
