How do you check for explosives? There are AQAP designs that involve zero metallic parts, and they've been attempted twice. In both instances the bombs actual

How do you check for explosives? There are AQAP designs that involve zero metallic parts, and they've been attempted twice. In both instances the bombs actually made it on the plane and the attacks were only prevented by other means. That's one of the reasons TSA is trying to shift to machines that detect explosive chemical residue directly instead of just magnetometers, but that necessarily brings with it false positives. I certainly think false positives can and should be handled better than what happened to OP, but you have provided no insight on how to check for guns and explosives here.