Within a few minutes of Noman Benotman’s arrival at the Kandahar guest house, Osama bin Laden came to welcome him. The journey from Kabul had been hard – 17 hours in a Toyota pick-up truck, bumping along what passed as the main highway to southern Afghanistan. It was the summer of 2000, and Benotman, then a leader of a group trying to overthrow the Libyan dictator Muammar Qaddafi, had been …