Letterman's 'Bombshell Bussing Incident' Hamilton Nolan · 10/08/09 08:50AM It seems like the actual Letterman scandal broke so long ago, yet the straitlaced scoops about the straitlaced funnyman's straitlaced affair continue, forever. Today: A motive, in the form of a kiss; the perp's solid rep; and advertisers don't care.