Do not accept the Ferguson police officer’s retirement. Just keep talking about his phantasmagorical fear of the black body – or else.It would be easy enough to call Darren Wilson a liar, as so many pundits have done, after reading the now-former Ferguson police officer’s testimony in the case of the killing of the 18-year-old Michael Brown. We could imagine this paragon of whiteness, soft-spoken and soft around the middle, as a rational actor, spending months after the shooting to carefully prepare for his grand-jury testimony, to repeat his performance in front of George Stephanopoulos for a television interview. Calling...