Jihadis holding guns
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Does al-Qaeda have a foothold in Syria?

There is growing concern among some Western officials about al-Qaeda's involvement in the Syrian uprising.

The Front for the Defence of the Syrian People has stated that there are jihadis who have returned from other wars to fight in Syria.

The BBC's Paul Wood, who has been inside Syria, assesses the influence of Islamists in the anti-government protests there.

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