You mean not start with hostility? Efforts to reform policing in this country usually involve reworking the training, more of it, eliminating qualified immunity, or technical solutions like body cameras. Mona Charon offers a novel start at police reform that requires politeness. The first thing the Memphis “Scorpion Unit” did when it stopped Tyre Nichols before beating him to death, Charon writes, was to curse at him. Over alleged reckless driving. Why? In a society as gun-saturated as ours, I can understand an order like Let me see your hands, or if the police are planning a roadside sobriety check, a request to Step out of the car. But there is no reason that both of those orders cannot be preceded by Sir or Please or both. Our judicial system is founded on the principle of innocent until proven guilty. Yet our police interactions with citizens too often seem grounded in the opposite assumption. Obviously, in the Nichols’ case, the profanity was the least of the offenses the cops (and others) committed, but it seems that some police lapse into profanity with citizens regularly. Some departments actually encourage cursing as a way of asserting control. They call it “tactical language.” A 2017 poll found that one in five Americans has been cursed at by a cop. That means, at the very least, that 20 percent of Americans were treated disrespectfully and given cause to dislike and suspect the police. We don’t get cursed at by firefighters, or clerks at the department of motor vehicles, or sanitation workers. And if…