EXCLUSIVE REPORT: Revolution and Jihad in Syria’s Aleppo

The anti-regime rebels in Syria all want to overthrow President Bashar al-Assad. But an increasingly influential faction aims to set up a caliphate, and some of these jihadists are members of the Free Syrian Army. Watch our exclusive report from the heart of the insurgency, the Salaheddin district of Aleppo. (Warning: video contains graphic footage.)