For half a century, criminal defense lawyer Leonard Weinglass defended a who's who of the twentieth-century left in some of America's most spectacular trials. "The typical call I get is one that starts by saying, 'You're the fifth attorney we've called, '" he once said. "Then I get interested." Those calls came from the likes of the SDS, the Chicago Seven, Daniel Ellsberg, Abbie Hoffman, and Mumia Abu-Jamal, among many others. In a field dominated...