David Letterman spent the better part of 10 minutes trying to clear up the mess he made regarding his Sarah Palin jokes. He primarily defended himself, insisting that he would never advocate child rape or promiscuity. He never actually apologized, but then who thought he would. It was more about damage control (while getting more laughs) than about the insensitivity he displayed when joking about Palin’s daughter getting knocked up by Alex Rodriguez.