On tonight’s Rachel Maddow, EP Bill Wolff (filling in for Maddow) brought in Professor Melissa Harris-Perry for a fresh take, and she delivered: Michael Vick is the victim of centuries of black oppression– from dogs? Wolff requested of Harris-Perry a “historical” take on the matter, and while she barely mentioned Vick (and said nothing of Tucker Carlson), she gave an extensive history of African-Americans and dogs. “We want to be really careful here,” she warned, “There are some complex issues at stake whenever you are talking simultaneously about African Americans and talking about issues of animal rights.” She explained that...