The President of Afghanistan makes no bones about the scale of the challenges facing his country, in this exclusive interview with the BBC's Justin Rowlatt. Ashraf Ghani says he has the most difficult job in the world, but claims real progress is being made. He predicts that the bulk of the remaining NATO troops will be able to withdraw within four years. He says the war with the Taliban should properly be seen as a drug war and boasts about his root and branch effort to reform the Afghan government and weed out corruption.

(Photo: Ashraf Ghani. Credit: Getty Images) Show less