Scott Carson pretty much nails it:

Today, as I look through the sources of “conservative thought” available on the Internet, TV, and radio, I find that the likes of Glenn Beck, Sarah Palin, and Andrew Breitbard make the John Birch Society look like Plato’s Academy by comparison. The capacity to communicate the conservative stance by means of intellectual disquisition and rational argumentation has vanished, only to be replaced by the same sort of shrill, knee-jerk bigotry that characterizes so much of the left. While it is true that even Glenn Beck will, on occasion, say something that I find congenial, one must sadly note that even a broken clock is right twice a day, and as any reader of Plato’s Theaetetus will know (hence, none of the current “conservative” pundits), getting something right once in a while is not a sufficient condition for knowledge or even intelligence.

Read the entire thing.