The U.S. House of Representatives recently passed a conservation package that includes a bill to ban new uranium mining claims on more than a million acres near Grand Canyon National Park. Proponents have long argued uranium extraction threatens the canyon’s watershed and environment along with the public health of the Navajo, Hopi and Havasupai tribes. Democratic Arizona Congressman Raúl Grijalva has spearheaded several attempts to make federal protections permanent near the park. He spoke with KNAU’s Ryan Heinsius about the newest bill and the legacy of uranium mining...