Geraldo did exactly what they said he did. I saw the episode. Arnett doesn't need to worry about a job. Saddams boys will probably hire him to do comentary.
As far as the sarin story, as I recall, Arnett claimed that he had proof but could not produce it. His repudiation of the story was a last-ditch attempt to salvage what he could of his tattered reputation. My memory may be at fault on this, as I was going through some pretty hairy personal things at the time.

troll