The Olympic torch arrived in London this week, ahead of the opening ceremony on Friday.
One man who carried the torch part of the way was BBC producer Stuart Hughes.
Hughes lost the lower part of his right leg in 2003 while covering the war in Iraq.
He stepped on a landmine.
Colleague Kaveh Golestan was killed.
He took part in the relay in West London using an Oscar Pistorius-style blade.
Hughes shares his story with host Aaron Schachter.
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