Originally Posted by MSY-MSP
What I would like to know, and i don't know, is has behavioral screening actually ever failed? I don't consider the Ried case to be a failure, because they caught him, twice only to have someone else override them. I know that behavioral screening will select non-threats, but has there ever been a documented case where behavioral screening totally missed a person who intended to do harm?
Yes, I've said it before here: El Al has screened and let terrorists get on board LY flights. That those terrorists were not going to kill LY passengers -- at least not on that day -- doesn't change the fact that terrorists got on board (repeatedly) on those flights despite "behavioral screening" being in play.