A yearlong investigation by the NYT unearthed thousands of Islamic State documents that help explain how the terror group ruled. “ISIS built a state of administrative efficiency that collected taxes and picked up the garbage. It ran a marriage office that oversaw medical examinations to ensure that couples could have children. It issued birth certificates — printed on Islamic State stationery — to babies born under the caliphate’s black flag. It even ran its own DMV.” (There have been times when I wondered whether they ran the one I go to.)