Censorship

When is censorship ok? Should people be responsible to self-censor? If we're always concerned with self-censoring does that limit our freedom of speech?

I think my response to both the second 2 questions is yes. People self-censor all of the time. They do it at work, with people they don't know, at job interviews-- so why shouldn't they do it when they are writing-- at least for publication.

More later.