Noam Chomsky is a professor (emeritus) at MIT. He is the author of many books and articles on international affairs and social and political issues, including 9/11, and a long-time participant in activist movements.
Richard Hofstadter (1916-1970) was an American historian. His many works include The Age of Reform,Anti-Intellectualism, The Paranoid Style in American Politics, and The American Political Tradition.