Native Tribes discovered as “uncontacted”

I am always amazed when I hear news of uncontacted native tribes being “discovered.”  There is a story that I saw one today about a tribe in Brazil that shows pictures from a recent “flyover.”  These poor natives are photographed aiming flaming arrows right at the aircraft that is taking their pictures.  Can you imagine the horror and dread these natives are feeling as they see this “monster” flying overhead?

Makes me think whether it really is in the tribes best interest, as human beings, to be left undeveloped or is it in their best interest to be contacted and taught “modern ways.”  That is a moral and ethical decision I know I’ll never have to make, and I’m glad that I don’t have the responsibility of having to make that decision