If they aren't watching the line then they aren't doing it right, inducing a predictable behavior in an adversary is half the point. Remember all the hubbub se

If they aren't watching the line then they aren't doing it right, inducing a predictable behavior in an adversary is half the point. Remember all the hubbub several years ago around TSA behavioral profiling? I don't think I've ever seen the link drawn in the media, but that was around the time that technical failures were being uncovered in the detectors and scanners. Also, and I'm well aware of the fact that this makes me sound crazy, that is when the TSA employee that checks IDs and marks boarding passes started calling me by my first name. So they're watching the line. Anyway, with the level of uncertainty already high in queue fill rates - I don't think anybody is going to feel confident enough that they'd alter their diabolical plans. Oh and I just remembered something that renders all this pointless, the functionality for randomly alerting is already built into the metal detectors... undoubtedly a contract requirement for a feature that is never used.