Media Matters - Horowitz: "There are 50,000 professors ... [who] identify with the terrorists":

"On MSNBC's Scarborough Country, right-wing activist David Horowitz claimed that '[t]here are 50,000 professors' who are 'anti-American' and 'identify with the terrorists.' There are just over 400,000 tenured and tenure-track full-time university professors in the United States. If Horowitz's numbers are accurate, that means approximately one out of every eight tenured or tenure-track college and university professors is a terrorist sympathizer."