Volokh says some interesting things here, but I have a big quibble with this one:
Yes, occasionally the Left does try to get such people fired; it generally fails, because the First Amendment does indeed protect professors who offend blacks as well as those who offend whites.
I'm pretty sure the protection that professors have from being fired is simply something called 'tenure,' combined with employment contracts which give wide latitude to expression under the umbrella of 'academic freedom.'
If Eugene worked for the law firm of Dewey, Cheatem, and Howe, he could be fired for almost any reason, including one of the partners taking offense to something written in his weblog.
