David Letterman was on vacation from the Late Show with David Letterman last week, but while he was gone a radical extremist made a threat against him. So what did David do now that he's back on the air? Make jokes about threat, of course. OK! NEWS: DAVID LETTERMAN TARGET OF JIHADIST WEBSITE URGING TO "CUT TONGUE" OF HOST "Tonight, you people are more ... than an audience, tonight," David said in his opening monologue on the Late Show with David Letterman. "You're more like a human ... Read More >>