Who or what can deliver South Sudan's people from despair? Its first six and half years as an independent country have been an unmitigated disaster. A brutal civil conflict, a broken economy, famine and epic levels of corruption - on any and every measure the world’s newest country is failing. This comes despite some of the largest oil reserves in sub-Saharan Africa. HARDtalk's Stephen Sackur speaks to South Sudan's Minister of Petroleum, Ezekiel Lol Gatkuoth.Image: Ezekiel Lol Gatkuoth (Credit: BBC)