Michelle Obama threatens White House escape

Striking fear into the hearts of Secret Service agents everywhere, Michelle Obama revealed plans for a (not-so-covert-anymore) White House escape on "Letterman." Asked if she could step out for a Slurpee unaccompanied, she said, "I've threatened to do it ... I'm going to do it one day." But it wasn't all fun and games for the feisty first lady who was there to discuss her Joining Forces initiative - she became emotional recalling her close relationship with her father. "Don't make me cry, this isn't 'Oprah,'" she chided Letterman. "Where are the laughs?"@denatchka tweeted, "Michelle Obama on #Letterman! Loving her openness & willingness to laugh. And to mock Dave."