Originally Posted by
GUWonder
Anyone who has traveled a lot from those US airports with WTMDs set to alarm "randomly" for the purpose of directing PreCheck LLL passengers to strip search machines would realize that even with a 100% Precheck LLL indicator that the kind of situation mentioned by the OP can hit -- it even hits TSA apologists if they fly enough from airports that have started with using strip search machines for PreCheck LLL passengers in the manner indicated herein.
This.
It gets a bit tiresome when some pax assume that all silly or adverse encounters at checkpoints are 100% because the pax got stroppy - because, you know, no TSO would ever get stroppy or be wrong, and even if they did, a savvy traveller always knows how to defuse the situation.