Osama video 'conclusive evidence'

The US has made public the video in which Bin Laden claims to know about the planning details of the attacks on the World Trade Center of 11 September and says he is surprised about the extent of the damage caused.

The Foreign Secretary Jack Straw has said he believes the tape is genuine and that it provides "conclusive evidence" of Bin Laden's guilt. Previously the Bush administration had said they would not publicise the tape because it might contain coded signals and messages for bin laden sympathisers.

In the video, Bin Laden tells a supporter: "We calculated in advance the number of casualties from the enemy, who would be killed based on the position of the tower."