Investigators are still looking into the cause of fires and overheating aboard Boeing's new 787s. Shizuo Kambayashi/AP hide caption

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New homebuilding reached a 4 1/2 year high in December, welcome news for an industry that lost 2 million jobs during the downturn. Despite those job losses, the sector is experiencing a labor shortage in some parts of the U.S. Tony Dejak/AP hide caption

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