Rose told me that until early July, when the genocide ended, she was led by Interahamwe to witness atrocity after atrocity. She said that even though the Interahamwe's overarching objective was to kill, the men seemed particularly obsessed by what they did to women's bodies. ''I saw them rape two girls with spears then burn their pubic hair,'' she said. ''Then they took me to another spot where a lady was giving birth. The baby was halfway out. They speared it.'' All the while, Rose repeatedly heard the soldiers say, ''We are doing what was ordered by Pauline Nyiramasuhuko.'' .... ''The intention in Rwanda was an abstraction: to kill without killing,'' said Arbia, the tribunal prosecutor. She described the case of a 45-year-old Rwandan woman who was raped by her 12-year-old son -- with Interahamwe holding a hatchet to his throat -- in front of her husband, while their five other young children were forced to hold open her thighs. ''The offense against an individual woman becomes an offense against the family,'' Arbia said, ''which becomes an offense against the country, and so, by deduction, against humanity.''