KEVIN BARRETT, PROFESSOR, UNIVERSITY OF WISCONSIN: I know that 9/11 was an inside job. Professor Steven Jones has found residue on the steel samples from the World Trade Center. We now know that it was taken down in a controlled demolition. (END VIDEO CLIP) SEAN HANNITY, CO-HOST: That was a clip from our exclusive interview Monday night with University of Wisconsin Islamic studies professor Kevin Barrett. Now the university, in fact, says they will allow him to teach his class on Islam, in spite of his controversial theories about 9/11. But Professor Barrett isn't alone in his beliefs. One of his supporters joins us now. Dr. Bob Bowman is a member of Scholars for 9/11 Truth, currently a Florida Democratic congressional candidate. So you believe this is an inside job. You believe this was a controlled demolition as he does? BOWMAN: I don't know who did it, and neither do you. We have a right to know who did it. And so do the families of the victims. We need a truly independent investigation to find out the truth. The most unbelievable of all the wild conspiracy theories is the one that our government has told us. COLMES: You believe the United States government itself is putting forth a conspiracy theory when it talks about 19 people with box cutters in an airplane and Usama bin Laden being the mastermind? BOWMAN: Absolutely. There [were] 20 people involved, right? That makes it a conspiracy. More than one person plans a crime. That's a conspiracy.

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