NPR's Michele Norris talks with Whitney Dow and Marco Williams, producers/directors of the POV documentary Two Towns of Jasper airing on PBS stations next Wednesday. Dow and Williams talk about how they each directed a separate film crew in Jasper, Tex., during the trials of three white men for the murder of a black man, James Byrd, Jr. He was chained to the back of a pickup truck and dragged to death in 1998. Dow's crew of white filmmakers only interviewed white residents of the town. Williams' crew of black filmmakers only interviewed black residents of the town. The deliberate segregation of the film crews allowed residents to speak with a candor seldom seen on camera.