Why Iran's capture of US drone will shake CIA

Bat-winged, high-flying and hard to detect, America's RQ-170 Sentinel plane is the perfect stealth drone for peering into another country's secret sites without being caught.

One was used in May to feed back live footage of the US Navy Seal raid on Osama Bin Laden's compound in Pakistan.

So probably not the sort of hardware the CIA would ever like to fall into the hands of the Iranian Revolutionary Guards Corps? Oops.

For more: BBC News - Why Iran's capture of US drone will shake CIA