Three years ago, a small police department in Jennings, Mo., was so bedeviled by racial strife between its white officers and black residents that the city council fired the whole force and built a new one, the Washington Post reports. One of the fired officers was Darren Wilson, 28, accused of shooting 18-year-old Michael Brown nearly two weeks ago on a hazy Saturday afternoon outside the youth’s housing complex in Ferguson, Mo., a predominantly black community. In a step up from Jennings, Wilson, who is white, was hired three years ago by the Ferguson Police Department as a patrol officer....