Undated image posted on a militant website shows rebel fighters from the Islamic State of Iraq and the Levant (Isis) marching in Raqqa, Syria
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Syria: How foreign fighters are using social media

A report has cast unprecedented light on how foreign fighters engaged in the Syria conflict are using social media.

The International Centre for the Study of Radicalism report says they are using social media to document their role in the conflict in real time.

Richard Watson reports for BBC Newsnight.

This film was first broadcast on Newsnight on Tuesday 15 April 2014.