Salmo, there is absolutely an angle of irrationality to this. But then again, after 9/11 we created the TSA, invaded two countries, enacted the freedom-limiting Patriot Act and spent (spend) trillions on the lot. The death toll on 9/11, while dramatic and awful that day, was around 2,000. That is 1/6 the number that die of gun murders each year. And yet, we spend and we take our shoes off at the TSA checkpoint, and so on. I mean seriously, one incompetent half-wit tries to blow up his shoe on an airplane, and we are all compelled to do the TSA shoe dance ad infinitum. I offer that comparison just to make a point that it's not unprecedented for this country to act irrationally. I actually don't have an opinion about what to do about school security for many of the reasons you cite and more.