This combination of Associated Press file photos shows, left, a teller at the Taipei Bank, in 2002, in Taipei, Taiwan, and the 2011 Bank of America mobile application on a mobile device. Many ... more 
This combination of Associated Press file photos shows, left, a teller at the Taipei Bank, in 2002, in Taipei, Taiwan, and the 2011 Bank of America mobile application on a mobile device. Many middle-class workers have lost jobs because powerful software and computerized machines are doing tasks that only humans could do before. (AP Photo) less 
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Associated Press
Thu, Jan 24, 2013 12:17 AM EST