Political violence in America has taken many forms, but in contemporary America left wing violence has not been a major problem. The days of the Weather Underground, for example, have now receded into history. State sponsored killing of innocent African Americans, on the other hand, continues to be a major problem. Just last week, we saw this ugly phenomenon once again as, Jeronimo Yanez, the killer of Philando Castile, was acquitted. The word for being concerned about left wing violence but not the killing of innocent African Americans is racism.