For one hundred days in 1994, the African country of Rwanda suffered a horrific campaign of mass murder. Neighbor turned against neighbor as violence engulfed the region, resulting in the deaths of over one-tenth of the country’s population. How did this happen? And why didn't international organizations intervene? Susanne Buckley-Zistel digs into the history of the Rwandan Genocide. Lesson by Susanne Buckley-Zistel, directed by Mohammad Babakoohi.