neuroscience shows that our brains even respond differently at an unconscious level simply to the view of faces from other races or cultures. At a tribal level, people are more emotional and consequently less logical: Fans of both teams pray for their team to win, hoping God will take sides in a game. On the other hand, we regress to tribalism when afraid. This is an evolutionary advantage that would lead to the group cohesion and help us fight the other tribes to survive. Tribalism is the biological loophole that many politicians have banked on for a long time: tapping into our fears and tribal instincts. Some examples are Nazism, the Ku Klux Klan, religious wars and the Dark Ages. The typical pattern is to give the other