I had been loosely following the stuff on the missing US school buses & what Mo’s followers might be up to, but just found this link on Dr Bulldog re Jihadi post cards sent to Florida schools threatening Jihad Boom, just as you posted:

http://wwwwakeupamericans-spree.blogspot.com/2007/09/school-terror-threat-jihad-boom.html
* Nine schools were sent these threatening postcards.

Quite a long article with pics of the postcards, & stuff about the missing buses & other things.

If Alexander Tytler ever existed it doesn’t matter: the poor uneducated fool obviously doesn’t understand the concept of a “constitution”.

Jeez, some people are dumb.
If Dead Alex was right, we’d all be multi-millionaires by now…