It's been 10 years, since Jamaica's Usain Bolt broke his own 100 metre World Record at the World Athletic Championships in Berlin. We hear from three men who were lucky enough to be in the stadium when Bolt finished in 9.58 seconds. Antigua and Barbuda sprinter Daniel Bailey, race starter Alan Bell and commentator Márton Gyulai talk about their experiences of watching Bolt race towards the finish line. Former Jamaica sprinter Grace Jackson and journalist Kayon Raynor discuss the future of Jamaican sprinting and who could challenge Bolt's record.