SHOCK VIDEO: Inside Trump's Concentration Camp For Immigrant Children

A youth migrant shelter in El Cajon opened its doors to journalists on Friday amid a public outcry about the Trump administration's practice of separating families at the border.

Casa San Diego houses 65 boys between the ages of 6 and 17. About 10 percent of the boys were separated from their parents by the U.S. government, according to Gerardo Rivera, associate vice president of immigrant children's services for Southwest Key Programs, the nonprofit that runs the shelter.

Rivera downplayed the difficulties that family separation has brought to the shelter, saying that Southwest Key — which operates 27 shelters in California, Arizona and Texas — is used to dealing with kids who are upset or traumatized for a number of reasons, including gang violence in their home countries.

"This is not a new thing for us in the shelters," he said. "These kids come in and they're traumatized from a long time ago."

Rivera said even the boys at the shelter who crossed the border alone are dealing with family separation anxieties because some of them lost parents to crime in Central America or had to say goodbye to loved ones at home.

The Department of Homeland Security transfers children to the Department of Health and Human Service's Office of Refugee Resettlement, which places them in shelters like Casa San Diego. Shelters proliferated after 1997, when the Supreme Court ruled that immigrant minors could not be held in detention like adults. Case managers at the shelters try to find sponsors or foster care for the children, with an 1:8 ratio of case managers to children.

Media tell us @realDonaldTrump is keeping kids in “cages.” The facility I visited is a dormitory with a school, clinic, and outdoor recreation. They give them new clothes .They have field trips to parks & zoos. They even had a “prom.” Sad situation but not what we have been told.

— Joel B. Pollak (@joelpollak) June 15, 2018

Inside a shelter for illegal alien children separated from their parents ... does this look like a concentration camp? https://t.co/mVjmGN0BJ5

— Mark R. Levin (@marklevinshow) June 15, 2018

Report: Young Border Crossers Cost American Taxpayers $1.4B Last Yearhttps://t.co/TkalmfLb9c

— John Binder 👽 (@JxhnBinder) May 31, 2018

"Data provided to Breitbart News reveals that each unaccompanied minor costs the feds about $34,660 annually. This is a higher standard of living per child than the roughly 13 million American children who continue to live below the U.S. poverty line." https://t.co/QRJBmUNUBX

— John Binder 👽 (@JxhnBinder) June 17, 2018