On this edition of Africa 54: bandits have released 15 more students kidnapped last month from a Baptist school in northwest Nigeria; UN High Commissioner for Refugees, Filippo Grandi met with South Sudan’s President, Salva Kiir and called for viable solutions to help rebuild the country after years of conflict; And Ethiopia has begun developing its own social media platform to rival Facebook , Twitter and Whatsapp, though it does not plan to block the global services.