Originally Posted by Points Scrounger
For the past many many months, the person working the metal detector (at all airports I've been through) has insisted on seeing the boarding pass that I had just shown the screener and had been so marked.
Yesterday, at Boise, the guy could not have cared less? I thought the purpose of having TSA was to standardize these things?
It depends on the aiport and you have no way of knowing. The difference is that some airports have dedicated lanes for screening SSSS and some do not. If you go through an airport that has no dedicated lanes then the BP will be checked multiple times as you noted. If you go to one that has a dedicated lane, the BP is checked once and you are on your way.