What does the US Border Patrol have to do with the shooting in Uvalde, Texas?

On Today's Show:Michelle Garcia, journalist, essayist, Soros Equality Fellow and Dobie Paisano writer-in-residence, and Monica Muñoz Martinez, associate professor of history at the University of Texas-Austin, talk about the border security apparatus at Uvalde, and the history of violence and discrimination at the South Texas and Mexican border.