**FILE** South Africa's Oscar Pistorius participates Aug. 5, 2012 in the men's 400-meter semifinal at Olympic Stadium during the 2012 Summer Olympics in London. (Associated Press)

Photo by: Anja Niedringhaus

**FILE** South Africa's Oscar Pistorius participates Aug. 5, 2012 in the men's 400-meter semifinal at Olympic Stadium during the 2012 Summer Olympics in London. (Associated Press)