Six powers agree on UN sanctions 'snapback' in push for Iran deal, sources say
A senior Iranian diplomat said Iran was now reviewing several options for the possible "snapback" of Security Council sanctions against Tehran.
Officials wait for a meeting with officials from P5+1, the European Union and Iran at the Beau Rivage Palace Hotel in Lausanne March 31, 2015.(photo credit: REUTERS)ByREUTERS