Will They Strike Again?

At first sight, the video might be a routine tv ad for a luxury hotel, the camera dutifully following a waiter as he arrives at a room carrying a tray. But when the guest opens his door, the waiter whips out a pistol and calmly proceeds to blast the head off a papier-machE dummy. In other scenes, masked fighters abseiling down the walls of the "hotel" with grenades leave no doubt what this is: a training manual for an assault on a resort complex. The video, one of a batch of al-Qaeda tapes found outside Kabul this month, is a chilling...