Article Photos: Syrian opposition calls on Hezbollah to stay out 7/7

U.S. Secretary of State John Kerry, right,  Turkish Foreign Minister Ahmet Davutoglu, center, and Syrian opposition leader Moaz al-Khatib pose for photos after a "Friends of Syria" group meeting at the Adile Sultan Palace on Sunday, April 21, 2013, in Istanbul, Turkey. The United States said Sunday that it will double its non-lethal assistance to Syria's opposition as the rebels' top supporters vowed to enhance and expand their backing of the two-year battle to oust President Bashar Assad's regime.  (AP Photo)