This undated photo provided by Sacheen Whitetail Cross shows Tipizi Young, left, and 3-year-old Hayden Brownotter with a Halloween mask at Sitting Bull College's Kampus Kids Lakota Imme

 

              This undated photo provided by Sacheen Whitetail Cross shows Tipizi Young, left, and 3-year-old Hayden Brownotter with a Halloween mask at Sitting Bull College
This undated photo provided by Sacheen Whitetail Cross shows Tipizi Young, left, and 3-year-old Hayden Brownotter with a Halloween mask at Sitting Bull College's Kampus Kids Lakota Immersion program in Fort Yates, N.D. The immersion program is one of several endeavors under way to teach the Lakota language to children at a younger age. Fewer than 6,000 people speak Lakota fluently, which is less than 14 percent of the Lakota population in the Dakotas. And the average age of a Lakota speaker is 60. (AP Photo/Courtesy Sacheen Whitetail Cross)