Originally Posted by
GUWonder
Avoiding conspicuous attire makes sense, but that requires first knowing what is conspicuous under which circumstances. It is not uniform.
Of course we gotta use common sense.
I also found it useful to learn about the distributed surveilance at international airports through cameras and one-way mirrors. We should assume to be watched and evaluated at all times. Some decisions to select for secondary screening may well be communicated from a remote location.