Profile of John Carlos: who, together with Tommie Smith, performed the black power salute on the podium of the Mexico City Olympic games. "In life, there's the beginning and the end," he says. "The beginning don't matter. The end don't matter. All that matters is what you do in between whether you're prepared to do what it takes to make change. There has to be physical and material sacrifice. When all the dust settles and we're getting ready to play down for the ninth inning, the greatest reward is to know that you did your job when you were here on the planet."