As uprisings challenge the old order in the Middle East and North Africa, one organisation which for many years claimed it was at the vanguard of toppling authoritarian regimes has so far played almost no part. So is al-Qaeda still relevant? Do the uprisings represent a threat or an opportunity to its role?
In the short term, al-Qaeda has proved slow to respond and is struggling to make any impact, its ideology of violence undermined, experts believe.
But out of the current chaos and instability in the region, they warn, it could still be able to find new opportunities.
