Yeah. About the Texas Rangers.
They actually massacred Mexicans and hunted runaway slaves.
"They burned villages and slaughtered innocents. They committed war crimes, hunted runaway slaves and murdered so many Mexicans and Mexican Americans that they were as feared on the Mexican border as the Ku Klux Klan was in the Deep South. Throughout it all, Swanson writes, the Rangers operated a fable factory to burnish their image as heroic defenders of the innocent."
https://www.npr.org/2020/06/08/871929844/cult-of-glory-reveals-the-dark-history-of-the-texas-rangers

