EXCLUSIVE: 'It's like trying to plug a leaky dam.' US Border officials in Roma, Texas are joined by DailyMail.com as they search for migrant 'runners' attempting to sneak in unnoticed while law enforcement handle 'give-up' families
DailyMail.com joined US Border agents on dusk patrol Sunday in Roma, Texas, where Mexican cartels are ferrying hundreds of migrants over the Rio Grande and into the US every night
More than 75 per cent of arrivals that come on flimsy rafts are considered 'give-ups', who walk meekly into US custody in the hope of getting asylum
Then there are the 'runners', who aim to slip through a dragnet while border officials are handling 'give-ups'