CBS | MSNBC Rachel Maddow Drops a Bomb on ‘Late Show’ By Chris Ariens on Mar. 27, 2012 - 12:02 PM This TVNewser was at the Ed Sullivan Theater Monday afternoon for the taping of “Late Show with David Letterman.” Letterman spent two segments with MSNBC’s Rachel Maddow talking about her new book, “Drift&# ...