"Progressives" versus "liberals"

I've noticed a fascinating phenomenon in my on-line conversation with lib... er, progressives: their seeming conviction that to disagree with them, or to suggest that their rhetoric is irresponsible or ill-advised, is somehow to attempt to deny them their freedom of speech.

An equally fascinating phenomenon is their conviction that conservatives have no right to free speech whatsoever.

Maybe that's why they don't want to be called "liberals" anymore.

HT: Real Clear Politics