Track and Field Events Warm Up as Gymnastics Takes a Bow

Aired: 8/7/2012 | 0:06:42 | Clip
U.S. Gymnastic's all-around champ Gabby Douglas struggled to keep focus in individual events, while track and field events ramp up with 100-meter dash, hurdles and high jumps. Margaret Warner talks to USA Today's Christine Brennan about the latest results from the London Games, including the success of British athletes.