Martin Luther King, Jr., is widely celebrated as an American civil rights hero. Yet King's nonviolent opposition to racism, militarism, and economic injustice had deeper roots and more radical implications than is commonly appreciated, Thomas F. Jackson argues in this searching reinterpretation of King's public ministry. Between the 1940s and the 1960s, King was influenced by and in turn reshaped the political cultures of the black freedom movement and democratic left. His vision of...