"You can't fix crazy."

The demise of Osama has brought out a lot of the 'Truther' crowd on the internet who want to re-argue whether it was actually the airliners that brought down the Towers, or .... I don't know, leprechauns with little jackhammers might be their theory.  But of course they're leprechauns paid by the "evil guvmint".

So, just once ... this:

http://channel.nationalgeographic.com/episode/9-11-science-and-conspiracy-4067/Overview

That is all.