Let's broaden the discussion, Defender: What scenarios exist do you think where people don't talk to the cops?
You dismissed a few out of hand, ie: ethnic groups, military enclaves, etc. Of course, Georger, backed you up - at least indirectly - because he can't resist the opportunity to stab me in the back, or my ideas and values. But none of that changes the possibility that Cooper came from a world that is isolated, singular, and PROTECTED.
Perhaps you don't like that kind of world. Perhaps you prefer to think that everyone lives like you and Georger. Nevertheless, I believe the world is much more diverse than you seem to be inclined to acknowledge.