Via Anil Dash, whom you should read.

"The only loss of freedom that conservative people complain about while looking backwards is that they pretend their speech is limited by "political correctness". I'd say we're all a lot freer if it's considered rude or impolite to call a person by an ethnic slur, or to use a demeaning term to refer to a handicapped person. Those who feel restricted by societal demands to be considerate are poor arbiters of what exactly constitutes liberty.

So let the conservatives look to the past. It'll be their undoing. Right now the status quo is to pontificate on basic cable about various issues in sound-bite sized assertions, unburdened by the responsibility of accuracy, with rewards for combatativeness. And they are truly good at it. But I'm not hoping for increased participation in the realm of politics driven by television. I don't see that political talk shows have improved the tenor or content of discourse about policy in this country, nor have they resulted in an improvement in legislation or the execution and enforcement of laws already on the books."