They attend classes in the shelter every weekday, according to the Times, and spend two hours outside. He said no other former Walmart sites are being used to house youths as part of its program for unaccompanied children.
Soboroff was reporting on his visit to Casa Padre, an immigration detention center in Brownsville, Texas, for boys ages 10 to 17.
There is a mural of Donald Trump when you walk in, with the quote, "Sometimes losing a battle you find a new way to win the war".
Texas state Rep. Mary González (D) whose district includes the Tornillo area, said in a statement Thursday that the port of entry is unable to care for hundreds of children.
"This place is called a shelter, but effectively these kids are incarcerated, Soboroff said on MSNBC, pointing to photos he took during a tour supervised by the US Health and Human Services department".
Founder and CEO of the nonprofit, Juan Sanchez, said only national media was invited, and declined an interview.
Children are only allowed to leave the complex for two hours each day.
Cooper: Truth and the IG report
The report represents the culmination of an 18-month review into one of the most consequential FBI investigations in recent history.
The reporter observed that almost every room in the facility was housing multiple children, despite it being constructed to house four.
The Trump administration began implementing what it calls a "zero-tolerance" policy with regard to immigrant families crossing the US-Mexico border illegally.
"What the administration has made a decision to do is to separate children from their parents to try to send a message that if you cross the border with children, your children are going to be ripped away from you", Collins said.
The walls are also covered with murals, many of which focus on USA history.
Also their beds and the towels they shower with.
"To those who wish to challenge the Trump Administration's commitment to public safety, national security, and the rule of law, I warn you: Illegally entering this country will not be rewarded, but will instead be met with the full prosecutorial powers of the Department of Justice", Attorney General Jeff Sessions said in an announcement of the policy. Once cleared, the boys stay at Casa Padre for an average of 49 days.