Why has Sierra Leone imposed a fishing ban?

Focus on Africa - A podcast by BBC World Service

A month-long fishing ban in Sierra Leone leaves families struggling to cope.Who are AfriForum- the white Afrikaner minority group that's behind Donald Trump's intimidation of South Africa?And we meet Nada Hafez -The Egyptian fencer whose Olympic pregnancy stunned the world.Presenter: Charles Gitonga Producers: Patricia Whitehorne, Nyasha Michelle, Frenny Jowi and Paul Bakibinga. Technical Producer: Jack Graysmark Editors: Andre Lombard and Alice Muthengi.