an "airplane spotter" (professional airliner photography) who sounded more credible than some. Said he never saw a single emergency vehicle on the taxiways awaiting the aircraft. He also said airplanes were accepting takeoff clearance while Asiana was on final. And tower never gave Asiana priority when they checked into tower for landing clearance. Actually, Asiana had to contact tower twice reporting on Final for 28L before tower even responded. Tower gave several radio calls to other aircraft before finally clearing Asiana to land. If they were emergency, tower would've prioritized them.