Officials in Burkina Faso have launched an investigation after the bodies of 28 people were discovered in the north-western town of Nouna. The victims had been shot dead. And it is the third in our series of notable Africans as guest editors of the podcast. Today is the turn of law professor and South Africa's first female Public Protector, Thuli Madonsela. Her chosen topics include the contribution of African scientists to the detection of the Omicron variant of the coronavirus, and the future of democracy in Africa.