Lakota Sioux and the Problem of the Government

A few months ago the Lakota Sioux seceded from the United States and claimed all treaties null and void. I am happy for the Sioux, as so many tribes have been treated poorly for the past 2 centuries, but I am worried that this could end up being another "Wounded Knee." Only this time the technology is more advanced and there is live news feeds.

So far it looks as though nothing has happened to the Sioux who have seceded. Maybe the government is scared. Or, maybe I just can't find the newest news about the situation. Keep me updated and correct me if any of this information is wrong. I don't think it is, as I have been doing research, but I thought I would through that out.