Clarence Thomas, United States Supreme Court Justice; Chris Matthews, host of MSNBC's Hardball with Chris Matthews and NBC's The Chris Matthews Show; and Basketball Hall of Fame members and Boston Celtics immortals Bob Cousy and Tom Heinsohn are among the college's most famous alumni. LSD pioneer Timothy Leary was a student at Holy Cross, though he withdrew after two years. Michael Harrington, author of The Other America and an influential figure in initiating the 1960s War on Poverty, was a graduate of the college, as was the famed pacifist leader Phillip Berrigan.