Even those tribal peoples extolled by anthropologists as especially “gentle” – for example, the Semai of Malaysia, the Kung of the Kalahari, and the Central Arctic Inuit – turn out to have murder rates that are, relative to population, comparable to Detroit, which has one of the highest murder rates in the United States. In Europe, your chance of being murdered is now less than one-tenth, and in some countries only one-fiftieth, of what it would have been had you lived 500 years ago.