Science and technology

Associated Press
FILE-This May 6, 2012, file photo, shows an AT&T sign at a store in New York. AT&T is seeing declining smartphone sales, leading to the best profitability ever in its wireless arm as it saves on phone subsidies. The largest telecommunications company in the U.S. says it activated 5.1 million smartphones in its latest quarter, down from 5.5 million in the same period a year ago.  (AP Photo/CX Matiash, File)

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