Originally Posted by Global_Hi_Flyer

That shouldn't be too much of an issue. You enter the checkpoint, but you do not know that it will involve physical sexual assault. You can't refuse because you can't withdraw consent once entering the checkpoint. If you decline, the TSA still needs to complete it's search. I suppose if you refuse at that point, LEO can get involved and arrest you, forcing a search.

In other words, if you don't know prior to entering the checkpoint then you effectively have no choice. I believe that lack of such information before entering the checkpoint will result in an arguable case for assault. Of course TSA won't tell you before entering because they claim "SSI"... as much as anything else it provides the appearance that they are forcing unconsented searches on people to try and make the "big catch".