Interpellant: “… by the way, have you heard about the Greenwood massacre?” Other: “… the Green…?” I: “—wood. 1921” O: “Oh, yes, now I remember! Tulsa, wasn’t it. I saw a horrifying documentary about it about a year ago. Apparently, after the police’s cold-blooded killing of that guy, you know – ‘I can’t breathe” –…