One problem with all conspiracy theories, especially the ones presented here, is that the people that believe it usually believe some other stuff you simply don't want to be part of. CIA mind control, Roswell, Lizard Men, etc.
If you don't believe the 9/11 [censored] in Zeitgeist, how can you possibly therefore believe the guy when he goes on about the Federal Reserve? It's just a few steps away from then going into full-on anti-semetist "It's the Zionists" aka "let's gas the Jews" which you may get dragged into if you buy the lot wholesale.