Why is East Africa being devastated by floods?

Focus on Africa - A podcast by BBC World Service

Thousands of people in the Horn of Africa and East Africa have been uprooted by what the UN has called “once-in-a-century“ floods. We look at why this is happening now.Kenya's Ogiek community condemns the government, over forceful evictions that have forced members from their ancestral land.Plus, the initiative bringing hope to talented young South African musicians from townships in Cape Town.