The conflict in the eastern Democratic Republic of Congo reached a new peak this year as Rwanda-backed M23 rebels seized the key trading hub of Goma, threatening to trigger an all-out confrontation between the two central African nations. We explore what's behind the escalating tensions, and what the conflict means for the region's mineral wealth. Also on the show, an interview with the Group CEO of MTN, the continent's biggest wireless company by revenue, about his optimism, growth prospects