Armed U.S. Marshals ushered Susan Halsted’s grandparents from their Buffalo River farm in 1972 when it became a National River. Hear Halsted’s heartbreak, and her concerns about recent talks of another possible river re-designation. Cattleman Bob Shofner, a life-long resident of booming Northwest Arkansas, understands more people present challenges for farmers but says not all development is a heartless attack on long-time locals. It's episode four of our 5-part series on the past and future of the Buffalo River.