Their training is sketchy at best. What is ok at one airport is taboo at another. They make up their own rules as they go, are accountable to noone(as you so aptly put it), BUT best of all, after they've pi$$ed off thousands of passengers for no discernable reason, they'll get a nice fat government pension paid for by the same people they victomized all those years! We need to hire the Israeli's to monitor our airports. They're thorough, efficient, and don't care if they 'profile' anyone (as if profile was a bad thing!).