Despite its considerable diamondwealth, which might have spawned a corrupt and abusive elite, Botswana became a rare success in Africa, assisted by the benevolence of its leaders and by having a tiny population.
One is the control of mineral wealth: the diamond trade thrives in and around Kisangani, and some Ugandans close to Mr Museveni have grown rich exporting gold and other commodities from the country's north-east.