TARRAGONA, Spain -- On the morning of July 9, 2001, Mohamed Atta drove a silver Hyundai rental car east out of Madrid toward this Mediterranean beach area, a ribbon of resorts crowded with vacationers. The attacks on New York and the Pentagon were just weeks away and Atta was headed to a secret meeting to complete the planning, according to U.S. officials and a Spanish police investigation of the lead hijacker's movements.As Atta drove 300 miles across the country, his old roommate in Germany, Ramzi Binalshibh, was boarding a budget flight from Hamburg to Reus, the small airport that serves...