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Now Playing: 01-04-12 Marketplace Mid-Day Update

Today was a day of new directions for Internet giant Yahoo!, which named a new CEO. And President Obama is expected to appoint a new top cop for protecting consumers. Meanwhile today, the low-calorie, natural sweetener Stevia got the green light to be sold in Europe; Italy said it will allow 24-hour businesses; U.S. car sales look good in 2012; and more headlines from the GOP campaign trail.