They arrive in Mexico with no form of identification , no money and often only the clothes on their backs . Nearly 4,000 people live in `` El Bordo '' near the U.S.-Mexico border fence . The U.S. government has spent more than $900 million on a wall along its 2,000-mile southern border. Most have been deported from the United States but are n't wanted in Mexico .
Nearly 4,000 people live in `` El Bordo '' near the U.S.-Mexico border fence . The U.S. government has spent more than $900 million on a wall along its 2,000-mile southern border. Most have been deported from the United States but are n't wanted in Mexico .