David Letterman is a noble human being

Did he bring world peace? Debt relief to poor nations? Cure disease? No, but he did put Bill O'Reilly in his place, with style, for all the world to see:

"I am not smart enough to debate you point by point on this, but I have a feeling about 60% of what you say is crap. . . . but I don't know that for a fact." Dave says to Paul Shaffer, "Yeah, 60%. I'm just spit-balling here."

[ CBS | Late Show with David Letterman : Wahoo Gazette ]

For possibly just today you can catch the whole video on Dave's website, look for the link to "Big Show Highlight" and if the thumbnail show Bill O'R, then that's the one you want.