Iraq Seals Border Crossings with Syria

Syrian rebels have taken control of one of the country's key border crossings with Iraq, but Syria's neighbour has sealed off its end of the crossing and is not allowing refugees to pass through. Iraq has sent an army division to guard the border post, as the war-weary country grows increasingly concerned about the possibility that Syria's conflict could spill over the border into its territory. Jane Arraf reports from Irbil in northern Iraq.