Award-winning writer Richard Moore uncovers the secrets of Usain Bolt and the Jamaican sprinting phenomenon. Beijing 2008, the 100 metres final: Usain Bolt slowing down, beating his chest, ten metres clear of his nearest rival, faced filled with the euphoria of a young man in utter thrall to his physical talent. It is one of the greatest moments in sports history. It is just the beginning. Of the ten fastest 100 metres times in history, eight belong...