Syria ceasefire set for sundown but opposition seeks 'guarantees'

An internationally brokered ceasefire in Syria was due to begin at sundown on Monday but, with only hours to go, the country's opposition forces had yet to sign on. In a further sign of the deal's fragility, Syria's President Bashar al-Assad vowed to retake the whole country from "terrorists". The deal, announced Friday after marathon talks between Russia and the United States, has been billed as the best chance yet to halt the bloodshed in Syria's five-year civil war.