THE SMART WAY TO KEEP PEOPLE PASSIVE AND OBEDIENT IS TO STRICTLY LIMIT THE SPECTRUM OF ACCEPTABLE OPINION, BUT ALLOW VERY LIVEY DEBATE WITHIN THAT SPECTRUM - EVEN ENCOURAGE THE MORE CRITICAL AND DISSIDENT VIEWS. THAT GIVES PEOPLE THE SENSE THAT THERE'S FREE THINKING GOING ON, WHILE ALL THE TIME THE PRESUPPOSTIONS OF THE SYSTEM ARE BEING REFINFORCED BY THE LITMITS PUT ON THE RANGE OF THE DEBATE (Noam Chomsky)