The unaccounted-for children came in during the Obama regime. Fox News knows that Trump isn't responsible for their disappearance. Having appropriate law enforcement at the border helps cut down on children going missing. I think Fox is trying to draw attention to the problem. The Democrats always whine about Trump's immigration policies "breaking up families" when "breaking up families" is a pillar of the Democrat value system. They don't want law because they want human and drug trafficking to be easier for whoever is padding the politicians pockets.