Support WBURThere's a labor shortage in the U.S. Why is it so hard for migrants to legally work?Jasmine GarsdAugust 29, 2023 ShareMigrants at the Clinton Hill Shelter seek relief from the overcrowded confinements of 47 Hall St. Residents working as delivery drivers wait for orders to come in on July 19 in Brooklyn, N.Y. (José A. Alvarado Jr. for NPR)