U.S. policy pushes migrants to take dangerous routes

The U.S. and Mexican governments are investigating the deadliest human smuggling case in modern U.S. history. At least 51 people died after they were trapped in a sweltering tractor-trailer abandoned on the outskirts of San Antonio, Texas. Aaron Reichlin-Melnick, policy director of the American Immigration Council, joins Stephanie Sy to discuss the context in which these migrant deaths occurred.