Caravans are gone and agents taking stowaways off trains, but criminals still preying on those lacking clear path to US asylumPolice in Chihuahua, Mexico, say they have freed 1,245 migrants from criminal gangs in the past seven months. The kidnapping, extortion and violence inflicted on the foreign nationals who come to the border looking for a way into the United States is rising even though overall migrant traffic has dropped dramatically in recent months, a law enforcement official says. “We have diminished migration flows in terms of caravans and people arriving on trains. But I must point out we are...