Why the comparison to a sacred place like Arlington Cemetery? Or the Tomb of the Unknown Soldier, or key monuments at Gettysburg? What makes this Sioux site sacred, inviolable in the eyes of those for whom this place in North Dakota has drawn so much national attention? The environmental concerns alone would have been ominous enough to agitate the Native Americans on the scene. But the Cannonball River, which flows nearby, and the complex of tributaries connected to the Missouri River, are not merely sources of water. No, Spotted Eagle has said, water is “the best medicine,” the sustainer of life from a mother's womb until its issue, years later, breathes no longer. Water is necessary for the sweat lodge, so important in Sioux worship, and it serves as a purifier and calmer in sacred ceremonies. And much more.