As you asked in the post previous to this one, "what would you propose to prevent the kind of damage this guy has done"? Well, for starters we might say that if a guy is shouting at the top of his lungs kill all the infidels, Allah Akbar, associating with known terrorists, gets questioned by the FBI not once, but twice for such activities, it might be prudent to put that guy on a list that would identify him as a potential terrorist. Of course the PC "fundamentalists" would claim that to be profiling, so we have a problem with more than just the NRA and the stooges in congress.