In 1965, an NBC News documentary profiled life in the Mississippi Delta during the Civil Rights struggle. The film outraged some Southern viewers in part because of scene featuring Booker Wright, an African-American waiter working at a “whites-only” restaurant in Greenwood, Mississippi. Four decades later, Booker’s granddaughter and the filmmaker’s son went back to Mississippi in search of answers to Booker Wright’s life and untimely death. Dateline’s Lester Holt discusses.July 13, 2012