The civility emphasis sure dried up in a hurry once the left got offended in Wisconsin. So many of those people are like overgrown children, unable to see the beam in their own eye. True civility goes both ways and is not merely a club to beat the other side with when convenient and be discarded when you’re mad.
I don't think they were really offended over Arizona, even when they were writing diatribal, provably false accusations against Sarah Palin and the Tea Party in general.
It's nothing personal -- it's just propaganda, deeply bellyfelt.