Comedian Bill Maher is considering firing security officials on his U.S. TV talk show after a protester successfully interrupted a live broadcast. Maher was forced to help security guards remove a member of the audience after he smuggled in a sign reading, "9/11 is a cover-up fraud." After spotting the placard, Maher yelled: "Do we have some security in this building or do I have to come down there and kick his ass?" Maher says, "It's the only time I defend Bush. I'm thinking about firing my audience department."