The culinary historian Sarah Lohman, author of the new book \u201cEndangered Eating: America\u2019s Vanishing Foods,\u201d talks about the importance of engaging with local foodways, why \u201cthe idea that eating McDonald\u2019s is universally bad is woefully unaware of class and racial conflicts,\u201d and how Indigenous communities across the U.S. are fighting to protect their heritage.