IndyCar champion Danica Patrick: Why I wouldn't race in an all-female league

Danica Patrick is the most successful female race car driver ever, but she didn't want to be a trailblazer for women. She got into Nascar and IndyCar racing because she wanted to win. Patrick may have retired from racing earlier this year, but she's still applying that winner-take-all philosophy to her work — this time, in business.