People smugglers are using Facebook to promote '100% safe' journeys across the US border: One warns children can only enter America if they're unaccompanied Alleged smugglers have been setting up public pages on Facebook to hawk their services to Central American migrants The since-deleted pages were seen by NBC News and showed that smugglers are charging $8,000 to ferry migrants over the Mexico-United States border One of the messages posted by a purported smuggler read, 'travel to Mexico to the United States. Costs $8,000. 100 percent safe' A potential smuggler also warned parents that children would be allowed to cross the border only if they were traveling alone