At last Sub Saharan Africa has a positive economic story to tell, but is it being matched by improved governance? Are Africa's leaders making the best use of the current surge in economic growth to tackle endemic poverty? HARDtalk’s Stephen Sackur speaks to Guy Scott, recently appointed vice-president of Zambia. He is a trained scientist, an ex-farmer, and he happens to be the most senior white official in post-colonial Africa. It is tempting to see him as a symbol of a continent no longer trapped in its past, but is it true?