By Toms Evans; Sr. Writer, AMANPOUR. (CNN) – Former Nigerian President Olusegun Obasanjo insisted Wednesday that this week's explosion of violence that claimed at least 200 lives is not driven by religious tensions between Christians and Muslims – but by ethnic, social, and economic problems. In Sunday's violence near the central city of Jos, Christian … Continue reading Nigerian violence fed by ethnic, economic issues, ex-president says