“Yeah,” José replied, in English, a bit distracted. (The family’s names have been changed.) The twenty-eight-year-old, who worked as a scientist at a manufacturing plant in Los Angeles, was studying his laptop screen. He was using Google Maps to look at Mazatlán, a city on the Pacific coast of Mexico. “Mom, do you remember the address of the house where you grew up?” he asked, clicking around.journey-inline-newsletterinline-newsletter