For now, people caught entering the U.S. illegally are given an ankle bracelet and a bus ticket to go stay with family while awaiting their immigration hearing. The process is known as "catch and release."

The administration said 57 children under 5 years old were reunified as of Thursday morning. But 46 kids weren't reunited because of safety concerns.

11 families who had been detained and separated returned home Tuesday to Guatemala aboard a U.S. government-chartered flight.