Science and technology

Associated Press
FILE - In this Thursday, Jan. 6, 2011, file photo, exhibitors and buyers at the Consumer Electronics Show walk by a display of LG HDTV screens, in Las Vegas. An Associated Press investigation released in January 2013 found that millions of mid-skill, mid-pay jobs have disappeared over the past five years and have been replaced with technology. That experience has left some economists to worry that smarter machines and niftier software will continue to replace more and more midpay jobs, making businesses more productive and swelling their profits. (AP Photo/Julie Jacobson, File)

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