Federal authorities say they need to build a new immigration lockup in south Texas to handle the surge of young people who have illegally crossed into the U.S.
Many of these immigrants say they're fleeing drug and gang violence in Central America. Some are seeking asylum. Others are being held in detention, awaiting deportation.
El Salvador is one of the countries scrambling to receive thousands of these children from the U.S. and Mexico.
This segment aired on September 12, 2014.