We had a funny thing years ago where you could fold a Canadian bill (any denomination) and show the Queen's arse. Yeah, it looked funny, but fold any peice of printed paper and you can see smething.
As for this 9/11 stuff, I think Americans are now obsessed with finding the smoking gun. If you dig this deep for nothing, why did you put a brain-dead war-monger in the Whitehouse for a second consecutive term. I think P.T. Barnum was right.
Still, Canadian paper money rocks! It looks so much better, is more fun, and it's worth as much as Monopoly money so you don't feel as bad when you lose it!
Pierre