The Biden administration for the first time Tuesday allowed journalists inside its main border detention facility for migrant children, revealing a severely overcrowded tent structure where more than 4,000 people, including children and families, were crammed into a space intended for 250 and the youngest were kept in a large play pen with mats on the floor for sleeping. More than 4,100 people were being housed on the property Tuesday. Most were unaccompanied children processed in tents before being taken to facilities run by the Department of Health and Human Services and then placed with a family member, relative or sponsor. Oscar Escamilla, acting executive officer of the U.S. Border Patrol in the Rio Grande Valley, said 250 to 300 kids enter daily and far fewer leave. The youngest children — among them, 3-year-old girl being cared for by her 11-year-old brother and a newborn with a 17-year-old mother — are kept out of the pods and sleep in a playpen area. With thousands of children and families arriving at the U.S.-Mexico border in recent weeks and packing facilities, President Joe Biden has been under pressure to bring more transparency to the process. U.S. Customs and Border Protection allowed two journalists from The Associated Press and a crew from CBS to tour the facility in Donna, Texas, in the Rio Grande Valley, the nation's busiest corridor for illegal crossings. Subscribe to our YouTube channel: https://bit.ly/2TwO8Gm Bloomberg Quicktake brings you live global news and original shows spanning business, technology, politics and culture. Make sense of the stories changing your business and your world. To watch complete coverage on Bloomberg Quicktake 24/7, visit http://www.bloomberg.com/qt/live, or watch on Apple TV, Roku, Samsung Smart TV, Fire TV and Android TV on the Bloomberg app. Have a story to tell? Fill out this survey for a chance to have it featured on Bloomberg Quicktake: https://cor.us/surveys/27AF30 Connect with us on… YouTube: https://www.youtube.com/user/Bloomberg Breaking News on YouTube: https://www.youtube.com/c/BloombergQuickTakeNews Twitter: https://twitter.com/quicktake Facebook: https://www.facebook.com/quicktake Instagram: https://www.instagram.com/quicktake