Iran’s Foreign Minister Javad Zarif gestures as he speaks during a news conference at the Swiss Federal Institute of Technology in Lausanne (Ecole Polytechnique Federale De Lausanne) on April 2, 2015, after Iran nuclear program talks finished with extended sessions. Iran and world powers reached a framework agreement on Thursday on curbing Iran’s nuclear programme for at least a decade after eight days of marathon talks in Switzerland. The tentative agreement clears the way for talks on a future comprehensive settlement that should allay Western fears that Iran was seeking to build an atomic bomb and in return lift economic sanctions on the Islamic Republic. REUTERS/Brendan Smialowski/Pool – RTR4VXH0