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The Denver Broncos' Super Bowl victory against the Carolina Panthers was the third most-watched broadcast in U.S. television history. CBS also streamed the game online. Julie Jacobson/AP hide caption

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About one-quarter of lower-income families with school-age children say a mobile device is their only way to access the Internet at home, according to a new study. iStockphoto hide caption

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Advertisers used to guard their commercials until they aired on TV. Now, advertisers harness the power of Internet virality and release ads before the big game. Frederick M. Brown/Getty Images hide caption

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FBI Director James Comey is one of the federal officials who has said that the growing use of encryption hurts the ability to track criminals. Keith Srakocic/AP hide caption

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UmmaGawd (Tommy Tibajia), a pilot in the Drone Racing League, flies his quadcopter in an abandoned power plant in New York. The Drone Racing League hide caption

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