Support WBURMigrants are showing up at the U.S. southern border in historic numbers. Here's whyPlay03:31Download AudioJasmine GarsdNovember 12, 2023 ShareA migrant family shows their paperwork to Mexican immigration officials to proceed with their CBP One asylum appointments at the Chaparral pedestrian border in Tijuana, Mexico, to cross to the U.S. on Thursday. (Carlos A. Moreno for NPR)
