European Union foreign policy chief Catherine Ashton arrives at the Iranian mission for a dinner in Vienna April 7, 2014. A new round of talks between world powers and Iran on Tehran's contested ... more 
European Union foreign policy chief Catherine Ashton arrives at the Iranian mission for a dinner in Vienna April 7, 2014. A new round of talks between world powers and Iran on Tehran's contested nuclear programme will start on Tuesday. REUTERS/Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY) less 
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Reuters | Photo By LEONHARD FOEGER / REUTERS
Mon, Apr 7, 2014 2:53 PM EDT