John Burnett

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Updated June 15 at 12:50 p.m. ET

This is the largest government-contracted migrant youth shelter in the country: Casa Padre, a former Walmart supercenter converted into living, recreational and dining quarters for nearly 1,500 immigrant boys.

Shelter managers took reporters on a tour of the facility in Brownsville, Texas, on Wednesday, amid criticism over the Trump administration's "zero tolerance" policy that has led to separating migrant families who crossed the border illegally.

Three young Guatemalan women went on trial this week at the red-rock federal courthouse in Alpine, Texas. It's about 70 miles from the spot in the border town of Presidio where they waded across the Rio Grande three weeks ago, with their eight- and nine-year-old sons in tow.

One of the women, Emilia Figueroa, testified during the trial that she believed if she brought her boy with her, the two of them would be released to live in the United States until their immigration court date.

The number of immigrants illegally crossing the southern border plummeted when Donald Trump took office. But the number is again on the rise. In response, the president plans to deploy up to 4,000 National Guard troops.

In West Texas, immigrant shelters are overflowing with recent arrivals and some migrants are trying more dangerous routes to evade capture.

The intake room at Annunciation House, an immigrant shelter in downtown El Paso, is packed these days. Parents and squirming children sit with their travel bags. They are the aggravations of Donald Trump.

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Mar 21, 2018

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The Department of Homeland Security has undertaken its most extreme measure yet to discourage asylum seekers from coming to the U.S. — family separation.

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I'm joined in studio by NPR's Ryan Lucas. And, Ryan, Nannette was telling us there has been a massive federal response on the ground. She said the ATF, the FBI. How typical is that? And tell us, what are they going to be looking for?

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When 2-month-old Isaac Enrique Sanchez was diagnosed with pyloric stenosis, a condition that causes vomiting, dehydration and weight loss in infants, his parents were told that their son's condition was curable. The problem was that no hospital in the Rio Grande Valley of Texas had a pediatric surgery team capable of performing the operation on his stomach.

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