Even the First Amendment has its limits, and I'm pretty sure giving specific instructions on who to shoot and who not to shoot lies well outside those limits.

About the only instance I would say that would be true, would be -- if he was speaking solely to a guy who had a gun and came up to him and said "I'm gonna go on a shooting spree in the Capital, wanna come with me?" And he said "nah, I can't -- but lemme tell you who to aim for."

This isn't that case. And I'm afraid to tell you that, that means this IS within the limits of the First Amendment. I don't like that it is, but the tradeoff is that someone in the Tea Party really doesn't like that it is within the limits of the First Amendment that I could run an ad in the New York Times calling for a boycott of Sarah Palin's book. And since the First Amendment protects my right to do that, and the Tea Party guy has to suck it up and deal with it, I have to suck it up and deal with it that an asshole can crack these "aim for the congressmen, amirite?" jokes.

But the silver lining is that I can also turn to the asshole and say "dude, you're an asshole." Because the First Amendment protects that too.