Under what circemsances is censorship permissable? Whom do you trust to make the decision? If you were a librarian, under what circumstances would cencorship be OK?

I strongly believe that all books must at least be shared.  If most of the readers of the said book had trouble reading it or found it offensive, then it would be a good idea to take it off the shelf.  However, it is not our duty as librarians to restrain information from people, despite our personal belief.  If someone wants to publish a book on homosexuality, then it is my duty, despite my thoughts on the issue, to have that information available to the public.  It's not the librarians place to censor books, nor is it the US Government, or anyone for that matter.  To ban books is to ban knowledge, therefor acknowledging the fact that ideas or the sharing of ideas is dangerous.