The idea is that he is mocking all the outrageous conspiracy theories that exist about 9/11 (such as the planes being holograms!) in order to support his own assertion that it was Mossad who were responsible.
You can listen to one of his shows by clicking HERE
Here's the most recent radio show from this same guy where he discusses problems when running an internet forum dedicated to conspiracies... ooh the trouble! haha Click Here to Download
Watching these separate factions argue with themselves is entertainment in itself!