American political scientist and author Norman Finkelstein has been outspoken critic of what he calls the exploitation of the Holocaust and misuse of the term anti-Semitism for political gain.

Professor Finkelstein, who is the son of Holocaust survivors, has paid a high price for his views, recently being denied tenure by DePaul University after a very public battle with Harvard Law professor Alan Dershowitz.

Finkelstein is the author of 'The Holocaust Industry: Reflections on the Exploitation of Jewish Suffering' and his most recent book, which sparked the current controversy, is 'Beyond Chutzpah: On the Misuse of Anti-Semitism and the Abuse of History'.

Riz Khan asks Professor Finkelstein, what is the price of free speech in America today?