Pulitzer Prize-winning playwright David Mamet’s play, Race, dissects racial issues with unabashed frankness and plenty of humor. It’s onstage now at the Goodman Theatre. The setting: two lawyers, one black and one white and their young assistant, an African-American woman, try to navigate the minefield of race as they discuss a case they were forced to take on involving a wealthy and privileged white man accused of raping a black woman. Eight Forty-Eight sat down with one of the current production’s stars, former The Cosby Show actor Geoffrey Owens, and WBEZ’s Richard Steele to find out which conditions foster honest conversations about race.