POMPANO BEACH, FL - FEBRUARY 13: Warren Myers, a headend manager, stands among the cables and routers at a Comcast distribution center where the Comcast regional video, high speed data and voice are piped out to customers on February 13, 2014 in Pompano Beach, Florida.  Today, Comcast announced a $45-billion offer for Time Warner Cable.  (Photo by Joe Raedle/Getty Images)
Joe Raedle POMPANO BEACH, FL - FEBRUARY 13: Warren Myers, a headend manager, stands among the cables and routers at a Comcast distribution center where the Comcast regional video, high speed data and voice are piped out to customers on February 13, 2014 in Pompano Beach, Florida. Today, Comcast announced a $45-billion offer for Time Warner Cable. (Photo by Joe Raedle/Getty Images)

Pew Research Analyst Drew DeSilver comments that technological change already has reshaped the U.S. workforce -- creating new job categories while others fade away.

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