How ex-racing champ Alex Zanardi won the New York City Marathon…

Alex Zanardi was one of the fastest men on four wheels — winning two CART championships — that is, until a devastating accident in 2001 cost him his legs. But losing his legs hasn't meant he's lost his competitive drive. A decade later and Zanardi's now one of the fastest men on three wheels, winning the handcycle… » 11/07/11 12:00pm 11/07/11 12:00pm