Crime is down in America’s cities—or so our longstanding system for national crime reporting tells us. Claiming that those numbers lie, the Trump Administration  has deployed  swarms of federal agents and National Guardsmen to urban centers across the nation it claims are ravaged with crime. At the administration’s bidding, the office of the U.S. Attorney for the District of Columbia has launched an investigation  into the accuracy of Washington, D.C.’s crime statistics, whic