This week on Africa Weekly, we return to Burundi where confusion reigns after an attempt to overthrow President Pierre Nkurunziza ended in failure, we set sail with the Tunisian coast guards on the lookout for migrants making the deadly crossing to Europe, we head to Botswana where elephants are becoming both a source of revenue for the country and a scourge for farmers and finally, we meet the young skateboarders of Addis Ababa, rising above the capital's crises