Hi, I just completed reading a very interesting article called "Love Thy Neighbor: The Evolution of In-Group Morality," by Professor John Hartung. Here is the link to the full article: http://members.aol.com/toexist/ltnhome.html His basic premise is that through the evolutionary processes of Inclusive Fitness and Riciprocal Altruism, various population groups evolved an in-group morality psychology in which altruism is directed towards their own group to the detriment of out-groups. This behavior is then linked to much of the genocides and xenophobic behaviors of humans. From what he states, this behavior is innate and he takes a pessimistic view regarding the future human outcomes of this. But, he does suggest that the only solution to this would be to actually change the genetic/biological makeup of humans that cause such xenophobic/genocidal behavior. Anyway, I found the article very informative and would highly suggest reading it. Thank you.