Brazil’s high-stakes presidential election is less than a week away, and a crisis is unraveling at the country’s Supreme Court, with a corruption scandal causing justices to trade insults and cancel sessions. Also, more than 30 people have been reported killed in a series of at least four separate mass shootings that have taken place in South Africa over the past week. And, efforts to rein in the growing problem of e-waste in Ghana and Nigeria. Plus, the music and legacy of the Mighty Sparrow, a musician from Trinidad and Tobago known as the king of calypso.