On April 11, Jonathan Bean, a professor of history at Southern Illinois University at Carbondale (SIUC), received the college’s “Outstanding Teacher Award.” But just two days later, Bean became the scourge of the campus, abandoned by teaching assistants and vilified as a purveyor of “racist propaganda.” Behind Bean’s sudden fall from admired academic to campus Enemy Number One was a cabal of eight radical academics in the SIUC history department. Bean's offense was to have assigned as optional reading for his history class a 2001 Frontpagemag report titled “Remembering the Zebra Killings” by James Lubinskas. The class topic was “Civil...