Michael Richards made a mistake and he's been publicly chastised and finally apologized, let him move on, semiotics aside. I think a couple hundred years of opression give Afro-Americans the right to use the "N" word if if they want. I'd rather get back to one liners from Stephen Wright or Bill Cosby... how about from one of Dr. Cosby's old comedy albums "I don't eat brains and eggs..I don't like to eat something someones been thinking with..."
