Notwithstanding the city of Detroit’s various problems, residents still expect its police force to behave sensibly, but in July, a police commander’s office blundered, releasing to all officers a document concerning an order of form-fitting bulletproof vests. Each individual officer’s height and weight were on the email, but so were female officers’ bra cup sizes (which were initially necessary to assure body-armor fit so as not to restrict mobility — but obviously were no one else’s business).