**FILE** A burnt-out school block in Potiskum, Nigeria, is seen here on Oct. 20, 2012, following a gun battle and explosions by the Boko Haram sect. (Associated Press)

Photo by: Adamu Adamu

**FILE** A burnt-out school block in Potiskum, Nigeria, is seen here on Oct. 20, 2012, following a gun battle and explosions by the Boko Haram sect. (Associated Press)