"What if something significantly beyond a pepper spray prank were to happen ..."
as the resident paranoid i'll just add: you don't actually know that something more *didn't* happen. i'd contend that, first and foremost, whenever possible, the facts of the events are modified for public consumption, for the sake of national security. like what (may have) happened with the jet downing out of jfk in 10/01, or what the russians tried to pull with their simultaneous jet accidents last week.