I am Southern, born and bred, and to me the KKK is a mockery of everything Southern. Yes, it is a part of history but some parts of history are to be remembered so we don't repeat the sins of the past, not to be celebrated. And btw, not every Southern person owned slaves back in the day. It was the wealthy that did so. The poor white people wasn't any better off than the slaves.
Interesting and true. Post-reconstruction, as we moved more towards a class-based society, the poor became the most vehement racists. Definitely and interesting sociological study. Way too deep for Neowin, but interesting.
On this subject in general, I think it best to give these types some form of outlet that doesn't necessarily harm others, and allows the civilized to know where they are and what they are thinking. Would you rather have them invisible, conspiring violence in hate incognito? Best to let them exercise their rights within the law.