Iranian President Hassan Rouhani (L) greets Emir of Kuwait, Sheikh Sabah al-Ahmad al-Sabah (R) upon his arrival in Tehran on June 1, 2014. Kuwait's Emir started a landmark visit to Tehran focused on mending fences between Shiite Iran and the Sunni-ruled monarchies in the Gulf. AFP PHOTO/ATTA KENARE        (Photo credit should read ATTA KENARE/AFP/Getty Images)