Wikipedia is not censored for content, there is nothing "illegal" about the term "Negro", and no such suit would stand up in court. I need go no further than to mention the existence of articles like "Negro league baseball", which is what it was called and there's no getting around it. Having said that, the casual use of "Negro" is now considered offensive, and should be avoided in wikipedia except in context (as with Negro League baseball).  What's up, Doc?