2010 Winter Olympics: Bob Costas - 'You Can't Know Everything' About The...

2010 Winter Olympics: Bob Costas - 'You Can't Know Everything' About The Olympics

Bob Costas talks with Access’ Maria Menounos about what he does to prepare himself so he knows what’s going on during an Olympics broadcast. Plus, what does he think about the criticism skier Lindsey Vonn has gotten for being too sexy on a magazine cover?