• In this Feb. 2007 file photo, an Iranian technician walks through the Uranium Conversion Facility just outside the city of Isfahan 255 miles (410 kilometers) south of the capital Tehran, Iran.

    After nearly a decade of deadlock, Iran seems more amenable to making concessions to the six global powers seeking to ensure it doesn't develop nuclear weapons.

    LAST UPDATE : Nov 06, 2013, 6:25 PM EST