tion; he had a 15-year-old conviction for sexual conduct with a minor. While we generally give "due weight to inferences drawn" by law enforcement, Omelas v. United States, 517 U.S. 690, 699, 116 S.Ct. 1657. 134 L.Ed.2d 911 (19%), the case for deference is questionable here in the absence of any rati