I guess what I don't understand is this: If there are bad guys/gals who know that if they do not remove their shoes they will get more thorough inspection -- they will remove their shoes. Then they can walk thru with something on or in their bodies. Perhaps stuff between or under their tits or balls. So -- what's up with this? And does anyone understand what I am trying to ask? Doesn't anyone think the bad folks will do whatever it takes to not get secondary??