The secret war On the North-West Frontier, soldiers are trying to tighten the noose around bin Laden's forces. But in Europe and America, there is no clear enemy to fight - yet every expert knows that a terrorist atrocity is coming Mark Townsend in Tangier, John Hooper in Madrid, Greg Bearup in Peshawar, Paul Harris in Washington, Peter Beaumont in Baghdad, Antony Barnett, Martin Bright, Jason Burke and Nick Pelham in London Sunday March 21, 2004 The Observer There were shadows in the rocks. As the 12 US Special Forces soldiers arrived at a remote mountain region in eastern Afghanistan...