A hundred years ago, sociologist W. E. B. Du Bois said, “The problem of the twentieth century is the problem of the color line—the relation of the darker to the lighter races.” Why do you think that...

A hundred years ago, sociologist W. E. B. Du Bois said, “The problem of the twentieth century is the problem of the color line—the relation of the darker to the lighter races.” Why do you think that the color

line remains one of the most volatile topics facing the nation?