U.S. Secretary of State John Kerry (L) and his Iranian counterpart Mohammad Javad Zarif discuss seating arrangements for a meeting during a new round of nuclear negotiations in Montreux March 2, 2015. Kerry and Zarif held the first of what could amount to three days of meetings in Montreux about restraining the Iranian nuclear program in exchange for relief from economic sanctions. REUTERS/Evan Vucci/Pool (SWITZERLAND - Tags: POLITICS ENERGY)