Rwanda is in the midst of a weeklong commemoration of the 1994 genocide of at least 500,000 minority Tutsis and politically moderate Hutus by the then-ruling Hutu government. Flags are flying at half-staff and authorities are holding conferences to discuss how Rwandans can remember what led to the killing and work together to rebuild their country. Genocide survivor Alphonse Nkunzimana recalls fleeing his house as the violence escalated nearby. He says the rampage that followed is hard to forget: