The content originally appeared on: CNN Siddharth Kara is a British Academy Global Professor, senior fellow at Harvard School of Public Health and author of the forthcoming book: 'Cobalt Red: How the Blood of the Congo Powers of Our Lives,' with St Martin's Press. The opinions expressed in this commentary are his. (CNN)November in the Democratic Republic of Congo's southern region means one thing - the rains are coming. Storms explode with biblical fury across the land, transforming desiccated bush […]