by Sammy Ketz Agence France-Presse KHARTOUM, Sudan (AFP) — On Sudan’s Tuti Island, where the Blue and White Nile meet, the highest river waters since records began have left people struggling to hold back the rising floods. Wedged between the twin cities of Khartoum and Omdurman, people on Tuti fill bags with sand and small stones in an often futile bid to stop the lapping water from swamping their homes. The world’s longest river is […]