Bill O'Reilly of "The O'Reilly Factor" is the guest on "Late Show with David Letterman" Tuesday, and....well, you can fill in what comes after the "and" as far as Dave's questions are concerned...

Brian Williams?

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Should the "Nightly News" anchor, on a six-month suspension, come back?

What about the challenges to your assertions, Mr. O'Reilly, that you were in the Falklands during that long-ago war (and were not)?

"Did you ever fib on the air?" Letterman asks. This brief clips suggests a cordial meeting between both hosts, but see if you can detect a certain...edge. O'Reilly was hit by a David Corn-reported piece in Mother Jones a little over a month ago.  For more background, go here.  

Or, for Tuesday's clip...