Iran

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Iranian Foreign Minister Mohammad Javad Zarif, left, laughs with his Russian counterpart Sergey Lavrov after the meeting of foreign ministers from Caspian countries, in Moscow, Russia on Tuesday, April 22, 2014. (AP Photo/Ivan Sekretarev)

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European foreign policy chief Catherine Ashton and Iranian Foreign Minister Mohamad Javad Zarif, from left, arrive to address the media after closed-door nuclear talks in Vienna, Austria, Wednesday, April 9, 2014. (AP Photo/Ronald Zak)

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European foreign policy chief Catherine Ashton and Iranian Foreign Minister Mohamad Javad Zarif, from left, arrive to address the media after closed-door nuclear talks in Vienna, Austria, Wednesday, April 9, 2014. (AP Photo/Ronald Zak)