Migrant Crisis: 'Big Wave' of Crossings at US-Mexico Border

U.S. border authorities encountered more than 142,000 migrants at the U.S.-Mexico border in the first half of September, according to data shared by Mexico's president, a tally on pace to match or even surpass previous monthly highs.

The number of migrants caught crossing illegally or presenting themselves at legal border crossings has steadily risen after dropping in mid-May when the U.S. rolled out stricter new asylum rules.˜