Also, there has been much more man to man violence in the past. Its been an exponential decrease since the beginning of man. Stephen Pinker had a TED talk about

Also, there has been much more man to man violence in the past. Its been an exponential decrease since the beginning of man. Stephen Pinker had a TED talk about this http://www.ted.com/talks/steven_pinker_on_the_myth_of_violence.html http://www.ted.com/talks/steven_pinker_on_the_myth_of_violen....