After BALCO and Marion Jones and doping and every other thing to taint the world of track and field, the U.S. is in need of a hero. Allyson Felix can be that hero. In addition to being the world champion at 200 meters, she is a Sunday school teacher. She has a degree in elementary education from Southern California and plans to teach when her running days are over. She is coached by Bobby Kersee. She is not serving a six-month sentence in a federal penitentiary. She can fly. She doesn't laugh when her coach is falling over. She even bowls. If she wins gold, or her bracelets can stop bullets, I think we've found our hero.