Inside Syria - Syria's opposition: Embracing change

Will opposition groups find common ground in uniting against the Assad regime by agreeing to an umbrella body? Presenter Stephen Cole speaks to Yaser Tabbara, an adviser to the Seif Initiative - the name of the plan to unite the Syrian opposition; Radwan Ziadeh, a member of the Syrian National Council and ambasador Jon Wilks, the British envoy to the Syrian opposition.