60 minutes sports - Garrett McNamara and the big wave!

Garrett McNamara, the legendary surfer who holds the world record for the tallest wave ever surfed, describes what it's like to ride such a huge wall of water. He takes Anderson Cooper into the waters off Portugal where he rode that 78-foot wave -- and may have recently caught one even larger -- to experience the power and the danger in waves many believe are the biggest on the planet.