Black Cactus will know when he's done! 2012 Olympic Marathon Trials

Abdi Abdirahman, a.k.a. Black Cactus, reflects on his race at the 2012 Olympic Marathon Trials in Houston. Abdi lets doubters know that when he's done, he'll know he's done but that time is not now. Black Cactus gives his thoughts on the Team going to London, on Dathan and his friend Bernard Lagat.