Unwelcome Guests is possibly the best political radio show on the net, http://unwelcomeguests.org/ their latest show is on 9/11:
Cheney and the Plan for War and Dictatorship
Featured Speakers/Commentators: Peter Dale Scott, Mike Malloy
This week's show will be devoted to two presentations given by professor Peter Dale Scott. His topics are 9/11 in the context of his lifelong research into what he calls deep politics, and the deep state, and the role of 9/11 in wars of empire
I've not listened to this one yet...