National security jitters have trucking firms focusing on vigilance

Driving to work one morning, the government official charged with keeping the trucking industry safe from terrorists spotted an Osama bin Laden look-alike on the Capital Beltway.The tall, bearded, white-robed foreigner tending to a stalled Toyota on the American Legion Memorial Bridge, the official later learned from police, was just a Sikh fixing a flat tire.But Bill Arrington, general manager