Ji FU quoted The American Zone by L. Neil Smith
In the North American Confederacy . . . People are free--really free. Free to do …
Content warning Better joke, smaller spoiler.
"After all," Lucy suggested, "these things never use to happen 'till there was an American Zone." "Right," I replied. "I seem to recall there's a name for that particular logical fallacy." "Yeah," said Will, "Headus upassus."
— The American Zone by L. Neil Smith (Page 98 - 99)