Please reread my comment. I laid out my assumptions in the second sentence:

> First of all, I should call out that I think our conversation is really about a hypothetical situation in which a display like this was operating in an airport for all passengers, whether they opted in or not.

You should try and engage me on the argument I'm making. Also, characterizing my comment as "pure fantasy" or "outright delusion" doesn't do much to make me more receptive to your viewpoint.