The Super Bowl: America's Biggest Bet

Legal sports gambling is all about playing the odds: checking the point spread in a game and deciding the team upon which to place your money. But, who sets those odds and how? It's a process of combining cold calculations with the occasional hunch.

Watch Lara Logan's report.

As Super Bowl 45 draws near, "60 Minutes Overtime" goes behind-the-scenes with Las Vegas betting legend Billy Walters and renowned oddsmaker Kenny White, for their exclusive insight on the Vegas sports betting world.