Many people were elated when Supreme Court Chief Justice Earl Warren delivered Brown v. Board of Education of Topeka in May 1954, the ruling that struck down state-sponsored racial segregation in America's public schools. Thurgood Marshall, chief attorney for the black families that launched the litigation, exclaimed later, "I was so happy, I was numb." The novelist Ralph Ellison wrote, "another battle of the Civil War has been won. The rest is up...