• ranian children build model centrifuges out of styrofoam and glue in a competition beneath a banner reading 'Nuclear scientists of the next generation,' as Iranians stage a mass rally to mark the 35th anniversary of the 1979 Islamic revolution on February 11, 2014 in Tehran, Iran.

    Preliminary negotiations in Vienna over Tehran's nuclear program said to go well, even if skepticism about a long-term deal remains.

    LAST UPDATE : Feb 20, 2014, 1:14 PM EST
  • EU foreign policy chief Catherine Ashton (L) and Iranian Foreign Minister Mohammad Javad Zarif speak after a final press conference closing the third day of talks on Iran's nuclear programme, on November 10, 2013 in Geneva.

    Foreign Minister Javad Mohammad Zarif anticipates a deal within six months barring U.S. sanctions.

    LAST UPDATE : Feb 03, 2014, 11:09 PM EST
  • US Secretary of State John Kerry looks on during the 50th Munich Security Conference at the Bayerischer Hof hotel on February 1, 2014 in Munich, Germany.

    The U.S. Secretary of State met the Iranian Foreign Minister privately at the Munich Security Conference. 

    LAST UPDATE : Feb 02, 2014, 7:07 AM EST