Where in the world is Ann Curry? The displaced former “Today” show co-anchor, who now serves as NBC News correspondent and anchor at large, is headed to South Africa to cover Nelson Mandela’s health for the network. The 94-year-old former president of South Africa is in serious but stable condition after a persistent lung infection. Curry had to pull out of a planned appearance at Time Inc.’s “Make One Simple Change” event and panel discussion on child safety tomorrow morning in order to cover Mandela.