After three days of meetings in Geneva the Iran nuclear talks end without a breakthrough but with signs of progress says European Union foreign policy chief Catherine Ashton.<br/> <br />(SOUNDBITE) (English) EUROPEAN UNION FOREIGN POLICY CHIEF CATHERINE ASHTON , SAYING:<br/> <br />"A lot of concrete progress has been made but some differences remain."<br/> <br />Iranian Foreign Minister Mohammad Javad Zarif was even more optimistic.<br/> <br />(SOUNDBITE) (English) IRANIAN FOREIGN MINISTER MOHAMMAD JAVAD ZARIF , SAYING:<br/> <br />"I think we are all on the same wavelength, and that's important and that gives us the impetus to go forward when we meet again next time. Sop, actually I think we had a very good three days, very productive three days and it is something we can build on and move forward."<br/> <br />U.S. Secretary of State John Kerry also sounded an optimistic note.<br/> <br />(SOUNDBITE) (English) U.S. SECRETARY OF STATE JOHN KERRY, SAYING:<br/> <br />"There is no question in my mind that we are closer now as we
