Largest Single Group Of Migrants Ever, 376 Illegals Tunnels Under Old Fencing Barrier, Proving The Need For A New Security Border Wall The largest single group of asylum seekers ever to cross into the U.S. tunneled beneath the border wall near San Luis, Arizona, on Monday, voluntarily turning themselves into Customs and Border Patrol, according to the agency. Migrants literally hundreds of illegals can be seen marching toward Border Patrol agents by the... ( Full Story Below )⤵ https://abcn.ws/2FzUQbc via @ABC