FILE - 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, on June 17, 2018. As thousands of children were taken from their parents at the southern border amid a crackdown on illegal crossings by the Trump administration, a federal public defender in San Diego set out to find new strategies to go after the longstanding deportation law fueling the family separations. (U.S. Customs and Border Protection's Rio Grande Valley Sector...