(U.S. Customs and Border Protection's Rio Grande Valley Sector | The Associated Press) In this photo provided by U.S. Customs and Border Protection, people who've been taken into custody related to cases of illegal entry into the United States, sit in one of the cages at a facility in McAllen, Texas, Sunday, June 17, 2018. More than 2,300 minors have been separated from their parents since April, when the Trump administration launched its "zero-tolerance" policy that called for prosecuting illegal immigrants and taking their children away.