What is Driving a Surge of Violence in Niger?

For the last several months Niger has experienced a surge in attacks against civilians by violent extremists. This region of West Africa, the Sahel, has experienced profound and growing security challenges in recent years. What distinguishes this new upsurge in violence in Niger is that civilians are being targeted -- and on the basis of their ethnicity.  Guest: Ornella Moderan the Sahel Program Head for Institute for Security Studies.