@BrokenBiscuit There was a prison system called panopticon.
The point was that every prisoner can be observed and that they don't know whether they're watched.
If you force someone to not communicate in the open, they quickly move to a hidden comms method, that way preventing you from knowing what they are up to. Do like Sun Tzu, observe your enemy.
Also, forbidden knowledge lures quicker than an epileptic whore. Holocaust deniers are that way. Nazis, too.
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