Trinidad and Tobago native Kerron Clement will compete in the 400 meter hurdles event for Team USA. He already has a silver medal from the 2008 Olympics in Beijing. He's had a rough patch health-wise recently but had a strong performance at the Olympic trials and hopes to take the podium again. Kerron's family migrated to the US more than 20 years ago and he became a citizen in 2004. His grandmother moved the family to the US because she believed Clement had strong prospects in track and field and the poverty they were facing in Trinidad would prevent him from achieving his potential. Her grandson's Olympic medal is evidence that she made a good call.