A human trafficking expert railed against the Biden-Harris administration on Capitol Hill Tuesday for losing track of more than 320,000 migrant children, sharing a horrific tale of one girl’s abuse as an example of the “dangerous loopholes” that have led to widespread exploitation. Alicia Hopper, who has provided oversight to non-governmental groups and other organizations being exploited by human traffickers for sex or forced labor, told members of the House Homeland Security Committee that federal agencies tasked with securing the border have instead turned it into “a trafficking pipeline.” “As a Hispanic mother, this crisis is deeply personal to me,”...