So, Oscar Pistorius — a man born without fibulae — is running in the Olympic Games. He qualified for the 400-meter semifinal on Saturday, and he'll be on the South Africa team for the 4x400-meter relay later this week, an event in which he won a silver medal in last year's World Championships in Daegu. And did I mention that he has no fibulae? I did? Good. It's kind of a big deal.

Pistorius is classified as a T43 competitor, a group defined by the International Paralympic Committee as "double below knee amputees and other athletes with impairments that are comparable to a double below knee amputation." Both his legs were amputated before he was less than a year old, but against all the odds he is now competing against — and beating — able-bodied athletes on the world's biggest stage. For most observers, this is an inspirational story of the human spirit triumphing over adversity, but some people don't see things that way. There are those who believe that Pistorius should not be allowed to run in these Olympics, as they feel that the carbon fiber prosthetics that he runs on give him an unfair advantage over able-bodied competitors, who are forced to drag their burdensome ankles around the track like fleshy ball and chains.