Stephen Sackur speaks to Nigeria’s minister of state for petroleum resources, Emmanuel Ibe Kachikwu. When President Muhamadu Buhari won the Nigerian presidency two years ago it seemed like Africa's most populous nation had turned a corner. A first ever peaceful, democratic transition brought a promise of cleaner, better governance, and major economic reform. How is it going? Can oil dependent Nigeria transform itself into a modern trading economy?(Photo: Emmanuel Ibe Kachikwu arrives for an informal meeting between members of OPEC, 2016. Credit: Ryad Kramdi/AFP /Getty Images)