BULAWAYO – A headmistress who shared a revealing picture of her nether regions on WhatsApp faces investigation by the ministry of education, an official said. Married Stella Mhlanga, who heads Kumalo Primary School in Bulawayo, has apologised over the incident which she blamed on someone who had access to her phone. An uncensored picture of Mhlanga’s privates briefly popped up on her WhatsApp…