Originally Posted by red456
You are correct; however, this recent test if Knoxville was "only a test" and pax apparently could refuse to participate. I'm certain if the TSA ever introduced it as a screening mechanism, no one would be able to refuse.
It would be, unfortunately, interesting. TSA's mandate at airport screening is to look for prohibited items. So the mandate would have to expand to include this (and it may have already with the STOP program). I don't have to show ID to fly domestically, so why should I have to answer questions to fly? In addition, if a passenger invokes his rights against self-incrimination, then would you still be permitted to fly?