Same people that did 666, huh? I didn't know that. Actually, I could see racial prejudice being an angry ghost's motivation, as much as any of the other malevolent spirit rationales we've seen on this show. Of course, that doesn't change the fact that the episode did kinda suck. (Plus, Dean/Cassie had zero chemistry, IMO).

I don't know if there's a better way for a TV show like SPN to address the subjects of racism or interracial relations, but considering the general maturity level of the show's writers, maybe they should just leave it alone.