On a February afternoon, after pumping breast milk, Stephanie Villarreal sent her husband Juan Chavez Velasco to the hospital to drop off the milk at the neonatal intensive care unit for their 12-day-old daughter, who was born 10 weeks prematurely.
As Chavez, 35, drove from his home in Weslaco, black and white SUVs flashing police lights surrounded his car. He pulled to the curb, thinking they were after someone else. Then four U.S. Immigration and Customs Enforcement agents got out and one of them opened Chavez’s door.
