Twenty years ago, on 6 April 1994, the aircraft carrying Juvénal Habyarimana and Cyrien Ntaryarima, the presidents of Rwanda and Burundi respectively, was shot down near Kigali airport as they returned from peace talks in Tanzania. Both died, along with others on board. In the following months between 800,000 and one million Rwandans were murdered; as a central Africa co-ordinator for Amnesty at the time, I remember it all too clearly, not least the wilful flannel deployed during April and May by the Clinton presidency and his secretary of state Madeleine Albright to dodge using the action-triggering term ‘genocide’.

