The five permanent Security Council members reached on agreement on Syria’s chemical weapons that would be enforceable by Chapter VII measures, including military force; the compromise agreement provides that the decision to use military force would be subject to Security Council debate. Secretary of State Kerry held talks with his Iranian counterpart. Officials said two Uighur former Guantanamo detainees who were settled in El Salvador in 2012 have left the country. A federal watchdog agency said the FBI has been using drones for domestic surveillance since 2006.