US Secretary of State John Kerry waits for the start of a trilateral meeting at the Beau Rivage Palace Hotel in Lausanne March 28, 2015. The foreign ministers of France and Germany joined the top U.S. and Iranian diplomats on Saturday to help break an impasse in nuclear negotiations as major powers and Iran closed in on a 2- or 3-page accord that could form the basis of a long-term deal. REUTERS/Brendan Smialowski/Pool