Martin Plaut, the BBC World Service's former Africa Editor, has published extensively on African affairs. An adviser to the Foreign Office and the US State Department, he is Senior Researcher at the Institute of Commonwealth Studies. Sarah Vaughan PhD has worked in Ethiopia and the Horn of Africa si...

Martin Plaut, the BBC World Service's former Africa Editor, has published extensively on African affairs. An adviser to the Foreign Office and the US State Department, he is Senior Researcher at the Institute of Commonwealth Studies. Sarah Vaughan PhD has worked in Ethiopia and the Horn of Africa since the late 1980s, and has taught African politics and social theory in Scotland and Ethiopia.