Increased U.S. fears of terror attacks may not be unfounded. The Hajj, the huge annual Muslim pilgrimage to Islam’s holy city of Mecca, can provide cover for militant organizations attempting to secretly place operatives around the globe to stage attacks. Four years ago, Osama bin Laden’s relatives, worried about his ill health, tried to use the pilgrimage as a cover to visit the Saudi-born terrorist while he was holed up in Afghanistan, says a former Afghan airline official who was approached by the fugitive terrorist’s family. The sheer number of travelers for the five-day pilgrimage, which typically draws about 2 million Muslim visitors, means that tracking movements becomes difficult if not impossible __ and would-be terrorists know it. Full Story