Basic Black explores the current racial climate, brought into focus most recently by racist Red Sox fans yelling slurs at a black Baltimore Orioles player in May 2017. Panelists: Tanisha Sullivan, president of the Boston NAACP; Michael Jeffries, associate professor at Wellesley College; Ayanna Pressley, Boston at-large city councilor; and Phillip Martin, WGBH News senior investigative reporter.