If it ever happens again, it will be quick, and these fanatics will probably kill themselves in the process. They don't seem to have a problem with that. I mean, without going into details, I can think of a hundreds scenarios where they could kill thousands in one day, quickly. The problem is that they are entering this country, apparently unabated, routinely. Once here, we have very little defense against someone igniting taxi in a crowd of hundreds......or.........