The World Cup city where young people are mysteriously disappearing

Guadalajara, a World Cup site next year, lies in a cartel stronghold. As Trump considers attacking drug gangs, it offers a cautionary tale.Carmen Lucia Carrillo spotted her son immediately. Daniel was dressed in black, stretching his lanky frame over the cars, squirting soapy liquid. Handsome and outgoing, with a gap-toothed grin, he always did like to look sharp, even with a rag dangling from his back pocket. She had just bought him those jeans, from a trendy Mexican discount store, Beware of the Dog. A half-hour later, Daniel vanished. Two men — one carrying a pistol — grabbed him and...