Credit:

Karva Javi

South African Oscar Pistorius runner failed to qualify for the Olympic games by just 7/10 of a second. Pretty good --- especially for a man without legs. But his state-of-the-art prosthetics, called "Cheetah legs," have caused controversy in the world of sports: for some, they raise questions about what it means to be human. Produced by Ave Carrillo.

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