Governments have a bad habit of terminating indigenous tribes. There were over 700 treaties signed with tribes by government representatives. They forgot to tell the Tribes that those treaties were lies. About half of the treaties signed, were ratified by congress, so that meant that about half of the indigenous people lost any recognition in our government. Then came many different ways to extort treaty lands from the tribes that did get recognition. The reservation lands kept getting smaller every time. Then came the termination policy in the 1950'-6o's that bought out reservation lands to get access to natural resources and more tribes vanished from the roles. The tribes were always there, just not recognized by the government! The blood quantum cards to assure tribal membership is just another on going effort to make them extinct. It's working generation after generation. Alaskan Natives will fare no better than those in the lower 48. Be careful trusting much of anything.