The rent, dear boy, the rent. Who else but MIT would pay this a&&hole a hefty six figure salary for doing no work? Do you think he actually teaches anything? No way. Tenure means saying F* you to the taxpayers and your fellow citizens, and smirking up your sleeve at the fools who send their children your way.
He actually does teach.
What no one realizes (or cares) is that his subjects have nothing to with politics but with linguistics.
What amazes me is that his credibility in one subject somehow translates into other subjects.
Even worse is that he is a proven hypocrite.