Following his tirade against some black hecklers at The Laugh Factory the other night, Michael Richards has apologized for his behavior.
On the Letterman Show.
Jerry Seinfeld was a guest on the show, and he asked Richards to appear to discuss the issue (Richards appeared on a screen, not in person). I didn't see the show or watch the apology, but from what I'm reading Richards went off on more than one tangent. His sincerity is entirely dependent on whether you're inclined to give his a break or not.