Science and technology

Associated Press
FILE - In this Tuesday, Sept. 25, 2012, file photo, a pedestrian walks in front of graffiti in Athens. In a speech in 2012, former U.S. Treasury Secretary Lawrence Summers declared that the biggest economic issue of the future would not be the federal debt or competition from China but “the dramatic transformations that technology is bringing about.'' (AP Photo/Thanassis Stavrakis, File)

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