In the summer of 1957, a Baptist preacher in the segregated South issued  a series of fiery sermons denouncing the laziness, promiscuity,  criminality, drunkenness, slovenliness, and ignorance of Negroes. He  shouted from pulpits about the difference between doing a “real job” and  doing “ a Negro job.” Instead of practicing the intelligent saving  habits of white men, “Negroes too often buy what they want and beg for  what they need.” He suggested that blacks were “thinking about sex”  every time they walked down the street. They were too violent. They  didn’t bathe properly. And their music, which was invading homes all  over America, “plunges men’s minds into degrading and immoral depths.”  That preacher’s name was Martin Luther King Jr.