Unfortunately, Mr. Kovel was recently terminated from Bard College. He made a statement arguing that his termination of service is prejudicial and motivated neither by intellectual nor pedagogic considerations, but by political values, principally stemming from differences between himself and the Bard administration on the issue of Zionism.
I'd like to highlight one particular part of his statement on the responsibility of the intellectual:
"A fundamental principle of mine is that the educator must criticize the injustices of the world, whether or not this involves him or her in conflict with the powers that be." - Joel Kovel
Read his statement in full here.