“If the problem of the twentieth century was, in W. E. B. Du Bois’s famous words, “the problem of the color line,” then the problem of the twenty-first century is the problem of colorblindness, the refusal to acknowledge the causes and consequences of enduring racial stratification.” RaceRacismColorblindnessDu Bois Book:The First Civil Right: How Liberals Built Prison America Source: The First Civil Right: How Liberals Built Prison America