A Little Knowledge Is A Dangerous Thing.

Popular Mechanics who did an invaluable public service in debunking the assorted 9/11 conspiracies have now issued a follow up, debunking the new crank memes that emerged following the original piece. There is an argument for saying that it is a waste of time because people cannot be reasoned out of a position that they didn't reason themselves into. That is too pessimistic, conspiracy theories attract wavering support and create doubt among reasonable people if they are credible to the extent of most people's understanding of the events that occurred.