WHY is internet censorship wrong? pplleeaaasee help?

It takes away citizen's right to express themseves,1.2-It denies the govt the only way it can know what's wrong with its machinary.3.The resultant ignorance will lead to public unrest and threat to govt itself.4.Scared out of its wits the govt will do all that it should not do.5Thus the govt will finally fall like a cricket wicket and realize the folly of taking away the citizen's right to express themseleve!