I think copperstewart has the right of it.
I've got nothing against principled outbursts. Indeed, I encourage them and wish our US Congress looked a bit more like PM's question-an-answer period in the British Parliament.That's pretty much what I'm feeling right now. I think that if someone actually is a liar, we should call them liars, and our unwillingness to do so for the sake of "civility" has resulted in Republicans telling outrageous lies about LGBT people, undocumented migrants, women, science, Jesus, and damn near every other topic of relevance in our culture. But Rep. Wilson has a serious case of pot and kettle syndrome if he's calling the President a liar for accurately describing the health care reform plans being tossed about.
But "Joe" Wilson is a racist with a long history and questionable involvements, and it looks to me like the Obama + immigration context was just too much for an old cracker to bear.
14 Things You Need to Know About Obama Heckler, Rep. Joe Wilson
(And as a side note, I don't think it would be a problem if undocumented migrants were covered by public insurance instead of having to rack up everyone else's bills with their ER visits, and I am incredibly pissed that my tax dollars wouldn't be going to pay for the abortions of women who need them. Also, yada yada fight cap and trade because coal companies don't deserve a bailout and other miscellaneous issues on my mind lately that I haven't been blogging about as diligently as I should.)