I don't know about the rest of you, but whenever some significant event occurs in our political culture I find myself asking, "I wonder what Michael Moore has to say about this?"
Naturally, we didn't have to wait long before he chimed in on the Tucson murders. He tweeted (and I'm not going to reward his website with hits by linking to it): "If a Detroit Muslim put a map on the web with cross-hairs on twenty politicians, and then one of them got shot, where would he be sitting right now? Just asking."
A fair question, Michael, and I think I'll take a stab at answering it. First of all, I think we'd want to know something more about your hypothetical shooter. Is there any evidence that he was motivated by Islamic extremism? Is he even Muslim? Is there any evidence that he ever even saw the web page with the cross-hairs? Did the cross-hairs stand alone, or were they accompanied by an explicit call for someone to kill said politicians (after all, if Muslim extremists want you dead, they don't tend to pussyfoot around)?
If the answers to these questions are, "Yes," then I imagine that, at the very least, our "Detroit Muslim" would be declared a "person of interest" by the authorities. If not, not.
Now, if I might pose a counter-question to Michael Moore: if your "Detroit Muslim" were arrested for complicity in this hypothetical shooting of a politician, what would you be doing right now? The answer, I suspect, is "loudly demanding that he be released, and denouncing the authorities for violating his freedom of speech."