Michael Johnson opinion about Oscar Pistorius. #23 should he have competed at the Olympic games?

I feel yes he should have been able to go to the regular olimpics because I meen he has no legs so thats not a advantage. If anything its a disadvantage on his part but he just wants to been seen as normal. he should have only been able to enter one olimpics not both I feel that unfare and he is abusing the system. But yes I do feel he should choose either one.