Rwanda commemorates the 1994 genocide against the Tutsi

Rwandans have been remembering victims of the 1994 genocide against the Tutsi in which more than a million people, mainly Tutsi, were massacred by Hutu militias. This year's anniversary comes as Rwanda faces accusations of backing M23 rebels in eastern DRC. DW talks to Freddy Mutanguha CEO of the Aegis Trust, an international organization working to prevent genocide and Alex Ngarambe in Kigali.