By way of Damian Penny and Bill Herbert: David Graham DuBois, visiting professor of Afro-American Studies at the University of Massachusetts-Amherst, continues to fantasize in public that the Mossad had a role in the 9/11 attacks. (see also Laurence Simon's letter to the university's Provost) I too wrote to the Provost, suggesting that academic freedom doesn't necessarily cover hate speech and blood libel. The Deputy Chancellor wrote back and told me that "Prof. DuBois retired from the University in the summer of 2001, a few months before he wrote the article in question.". But for some reason, he is still listed on the Afro-American Studies faculty page.

DuBois, by the way, is the step-son of W.E.B. DuBois, who started his career as perhaps the pre-eminent African American intellectual of his generation, but ended his career as a Communist and groupie of Ghanaian "President for Life" Kwame Nkrumah. The younger DuBois seemed to emulate only the later career of his step-father, as one can see from his biography on the aptly named Endarkenment website