Guinean troops have fired shots in the disputed town of Yenga, which is on the border with Sierra Leone. What's behind this unprecedented development?

Also why are farmworkers in Kenya occupying tea plantations owned by multinational companies? And why we should be eating more fermented foods..

Presenter: Audrey BrownTechnical Producer: Francesca DunneProducers: Tom Kavanagh in London and Blessing Aderogba in LagosSenior Journalist: Karnie SharpEditors: Andre Lombard and Alice Muthengi