In reality, a randomly selected black man is overwhelmingly unlikely to be victim of police violence — and though white men experience such violence even less often, the disparity is consistent with the racial gap in violent crime, suggesting that the role of racial bias is small. Last year, according to the Washington Post’s tally, just 16 unarmed black men, out of a population of more than 20 million, were killed by the police. The year before, the number was 36. These figures are likely close to the number of black men struck by lightning in a given year, considering...