Sarah Eagle Heart, of the Oglala Lakota tribe, is a Native American activist, educator, storyteller and all-around badass. She is also the first Native American guest on The Mash-Up Americans. She schools Amy and Rebecca on the Indian boarding school era, how she took down a totally racist Homecoming tradition as a teenager, and why identifying as American is both a point of pride and pain. They also discuss the virtues of a matcha latte. Visit mashupamericans.com for more!