European Union foreign policy chief Catherine Ashton (L) and Iranian Foreign Minister Mohammad Javad Zarif address a news conference in Vienna March 19, 2014. World powers and Iran have agreed to hold... more 
European Union foreign policy chief Catherine Ashton (L) and Iranian Foreign Minister Mohammad Javad Zarif address a news conference in Vienna March 19, 2014. World powers and Iran have agreed to hold a new round of nuclear talks in Vienna on April 7-9 after two days of "substantive" discussions in Vienna on Tehran's contested work, European Union foreign policy chief Catherine Ashton said on Wednesday. REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: POLITICS ENERGY) less 
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Reuters | Photo By HEINZ-PETER BADER / REUTERS
Wed, Mar 19, 2014 10:02 AM EDT