This week: Standing up for the Standing Rock Sioux. For the US state of North Dakota, massive deposits of unconventional oil have brought much prosperity for some, great pain to others. In a bid to get even more of that oil to market, a new project is underway: the Dakota Access Pipeline. But the 1900 km, $3.8 billion project has long been opposed by local Indigenous people, the Standing Rock Sioux, who argue any spill would both devastate regional water sources and desecrate sites of spiritual significance. Pipeline proponents claim it will boost jobs, revenues, even safety, when compared to oil moved by rail or road. My guest this week has been an ardent follower of this struggle. A member of the Cheyenne River Sioux tribe in neighbouring South Dakota, Taté Walker is the editor of Native Peoples magazine.