Divided north Nigerian city fears post-election violence

By Alexis Akwagyiram KADUNA, Nigeria (Reuters) - As campaigning reached a peak for this Saturday's presidential election in Nigeria, residents of the volatile city of Kaduna made their own preparations - stock-piling food and securing shops and homes for fear of post-poll unrest. "That woman is stocking up before the election in case there is trouble," said 38-year-old Shola Oyeniyi, sitting outside the shop where she sells traditional robes. Some are leaving Kaduna to return to t