The latest round of talks between Iran and the P5+1– that is China, France, Germany, Russia, the United Kingdom and the United States, led by European Union foreign policy chief Catherine Ashton – took place in Vienna on 8-9 April, and when the parties next meet, in Vienna on 13 May, it will be with a view to start drafting a permanent nuclear deal. Many differences remain. Iranian foreign minister Mohammad Javad Zarif told reporters after the Vienna talks that there was agreement on 50-60% of issues, but that the remaining issues were “important ones and diverse”. “Even 2% can torpedo all of it,” he said.