From the "I can't believe these concepts ever get put together" files, I present to you an excellent example of the First Amendment in action...courtesy of Danny Bonaduce. Yes, you read that right: the child star of the 1970's turned shock jock of the 80's and all around reality star of the 90's shows how you can absolutely have a cogent argument.
I'll say this: I disagree with what he is saying, but he handles the intrusion into his private time with class, politeness, and directness. He makes his case, and when he can stomach no more, he lets loose. Watch for the part where, before he decides to tell this conspiracy theorist what he really thinks, he first turns to a fellow diner to apologize in advance for his language.
Danny Bonaduce, 9/11, Free Speech, and YouTube. Man, the internet is a wonderful thing.