
A tattered flag from Sept. 11, 2001 is brought to a stage near the footprint of the World Trade Center
For Scott Schlageter, 35, an American procurement manager for the Saudi air force, it was just another expat's night in Riyadh. He was watching an Antonio Banderas thriller, curled up on the sofa in his home in al-Jadawel, a gated town-house complex in the Saudi Arabian capital. Suddenly the lights died, and the TV zapped off. Schlageter saw a flash and felt a thundering explosion that blew out all his windows. "I grabbed my cell phone, went upstairs to a secure room, called the U.S. embassy and told them we were under attack," he says. A vehicle loaded with explosives had...