“Even though hundreds of children separated from their families after crossing the border have been released under court order, the overall number of detained migrant children has exploded to the highest ever recorded — a significant counternarrative to the Trump administration’s efforts to reduce the number of undocumented families coming to the United States. Population levels at federally contracted shelters for migrant children have quietly shot up more than fivefold since last summer, according to data obtained by The New York Times, reaching a total of 12,800 this month. There were 2,400 such children in custody in May 2017.”