Ken Silverstein's 'The Secret World of Oil' explores a murky business on which the west depends. Oil is the world's most important traded commodity. It powers our cars and drives our industry. And surging energy demand in developing countries from China to Brazil means its significance will only grow.
But how much do we really know about the business? Some of its public faces are familiar – the Gulf potentates, the bosses of BP and ExxonMobil, energy ministers in Europe and the US