I think many conservatives have lost the ability to filter their thoughts. The other day I saw a gun rights advocate on Chris Matthews calmly saying that he had no problem with law abiding citizens bringing guns to presidential appearances or onto airplanes. I wasn't shocked by the fact that he believed it, but I was surprised that he would say such things in the proverbial mainstream media because there is nothing to gain by it. The hardcore gun nuts already support him and he scares the hell out of everyone else.
I think this is what comes from watching too much Glen Beck.