Greenwood, Miss., has been roiling with tension and violence ever since last summer, when Negro students from out of town moved in to get a voter-registration drive going. A fire has gutted the students' headquarters, one Negro has been wounded by a gun blast, 27 have been arrested, and one has been bitten by a police dog. Every day clusters of Negroes march toward the courthouse to register, and every day the police methodically disperse them.
Hoping to dramatize their cause, the student leaders recently appealed for the help of outstanding U.S. Negroes. Into Greenwood last week came Chicago's Dick Gregory, 30,...