Jamaican Usain Bolt today became the second man in history after Carl Lewis to retain the 100 metres gold at the Olympics.He gave his country a perfect 50 Anniversary gift as it turns 50 years tomorrow.In a very competitive race in London minutes ago..Bolt won the race in 9.63 seconds to beat fellow Jamaican Blakes to the second place..Full details later..CKN Nigeria ,reporting from London
