A few posts on Crooks and Liars you should absolutely not miss, especially if you get bogged down in discussions with Cons:
When they babble there's no problem with racism and class divisions in this country, point them here. Be prepared to explain to them why, after generations of piss-poor treatment and rampant discrimination, black people may not have the warm fuzzies for white people, because you just know they'll fall back on the "But they do it too!" defense.
When they brag about Faux News ratings in the mistaken belief those mean something, direct them here. Good luck trying to get them to understand that the majority of Americans aren't obsessive fucktards who hang on Glenn Beck's every spew.
And when they whine for the 1,989,346th time about how that report on right-wing extremism dishonors the troops, bring this to their attention. You may find it difficult getting through their skulls that neo-Nazis infiltrating the military dishonors the troops far more than reports advising that various extremist groups might target service members, but in the end, perhaps a fact or two might penetrate.
I know, who am I kidding, right? But let's not give up hope just because the majority of them are hopeless fools.