It is often said that no government can afford to ignore the opinion prevalent among its citizenry. Hence, today even the worst tyrants would scarely hazard a program that might lead to widespread popular opposition .As you may know , there is always the possibility of resolution and the threat of revolt is a nightmare to a totalitarian government. Here lies the principal reason for the modern totalitarian government’s exceedingly circumspect control over the media of communication. Well it is noticed censorship and propaganda become techniques for manufacturing the "consent of the governed".