 A rare white bison calf was recently spotted in Yellowstone National Park. Tribal members and others from across the country attended a ceremony today to honor it. Hannah Merzbach with the Mountain West News Bureau reports. Many indigenous people say that birth fulfills a prophecy that goes back to millennia, a blessing and a warning. Lakota Chief Arvo Lookinghorse told the crowd we're at a crossroads. It's up to each and every one of you to make it happen.