Censorship is the last-resort solution. Ideally, you'd want to have control over people's education and social structures to prevent deviation before any censorship is even needed.

It's a real shame, because it seems we had reached a peak with the advent of mandatory state school and television. Now things are going downhill with more and more diverse subcultures allowed to build upon themselves and explore the limits and avenues for improvement in their ideas.

There has to be a way to keep people in line with our society's values while still giving them an impression of freedom.