A new tribe has been discovered in the Amazon. The tribe lives in darkness. The tribe lives with poor ideas about the moon and the stars. It lives with poor ideas about the microscopic realm—viruses, bacteria, cells. It has no idea of evolution, selection, and genetic drift. But instead of bringing these lost people into the human family, we keep them in the dark:

The Brazilian government policy is to avoid personal contact with uncontacted tribes in fear of disrupting their natural habitat or passing on germs the Indians are not immune from.

To not contact these people is to treat them like animals in a zoo. And what if one of them murders another human in their tribe? What about the law? The law must be universal. We can't have humans running around outside of the law and its order. If one of these uncontacted humans murders another one, he/she must be brought into the justice system. These are humans. We must treat them like humans—they need passports, birth certificates, voter registration cards. This is not a joke. Recall that "thank you" means "think of you." Humans think of (register) other humans.