i've come to benin, in southeast nigeria, the heartland of the black axe cult. the city's in the middle of one of the bloodiest periods of gang warfare in years. gunshots black axe are fighting for supremacy over rival cults. jesus! the police are nowhere to be seen. all over the city, people have formed armed vigilante groups to protect themselves. black axe have enormous power here. they have thousands of members in benin. ordinary people are at their mercy. they are heavily armed and seem