Is censorship in public school libraries ever a good thing?

Sometimes, but this all depends entirely on your point of view about censorship. Public school libraries usually listen to parents about how things should be.

Answer:

Censorship is always a bad thing. The implication is that someone (the agency doing the censorship) knows what is "good and proper" for everyone. This cannot be true as everyone is different. Children and young adults in all schools should have the opportunity to be exposed to whatever they choose and be offered the opportunity to discuss their findings with adults who are willing to explain the ramifications of what they observe in an intelligent and open way. In this manner they can form their own opinions as to what is appropriate.