Tim Blair, naturally:
In the universe of modern crazy, your truthers are at the top of the list. Where normal people see footage of massive jets piling into the World Trade Centre towers, truthers see all manner of clues hinting at unmanned aircraft, substitute flights (where did the passengers go?) and controlled demolition.
Michael Leunig is also given a new one. Don't miss the illustration accompanying the column.
(Aside: As I typed this post, I noticed that "truthers" has not yet entered into my browser dictionary. According to my browser, it is a spelling mistake and should be "druthers". I doubt it, our new cultural overlords will not give me the choice.)