I was merely trying to be polite here. It is one of the blacker pages in US American history. I myself have several books on North American Indian history ..., so no need to enligthen me here (f.i. the infamous Battle of Little Big Horn and the Massacre of Wounded Knee). An American poet was then propelled in the last century to proclaim ""I shall not be here/I shall rise and pass/Bury my heart at Wounded Knee,", allthough for all good purposes this had nothing to do with the events that unfolded at Wounded Knee or since. It just sticks to the mind.
Having said this: I do see this as an attempt at redress for the Oglala Sioux and re-establishments of traditions so entwinned with the big herds of bison in the Badlands and beyond and their annual migratory return. For sure some bison are already on the Reservations but this is a major initiative to bring the iconic animal species of the American West back into the fold.