An image shows the new Digg Reader, built as an option to replace Google Reader. The RSS subscription service will be discontinued on July 1, Google says. Digg hide caption

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The National Security Agency has been plucking data from central servers of large U.S. Internet firms, according to reports, and mining the data for possible security threats. NSA hide caption

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A row of beer cans in Australia, where a man's beer fridge has been blamed for playing havoc with the cellphone network in several neighborhoods. Torsten Blackwood/AFP/Getty Images hide caption

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The Spanish city of Santander is using a network of sensors to help improve services and save money. Incidents reported to Santander's command-and-control center, where the city manages data from sensors and smartphone reports made by citizens, are plotted on a map of the city. Courtesy of the University of Cantabria hide caption

itoggle caption Courtesy of the University of Cantabria

Composer Richard Einhorn lost most of his hearing several years ago, but that hasn't held him back, thanks to state-of-the-art digital hearing aids. Kevin Rivoli/AP hide caption

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Could you say "no" to this face? Christoph Bartneck of the University of Canterbury in New Zealand recently tested whether humans could end the life of a robot as it pleaded for survival. Christoph Bartneck hide caption

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Plugged in, but not at work: Web security personnel were called in to find out how a company's network was being accessed from China. They found that an employee had outsourced his own job. AFP/AFP/Getty Images hide caption

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The MaKey MaKey invention kit includes a plan for making a "banana piano," helping the Kickstarter project make it to the site's best-of-2012 list. Kickstarter says 2.2 million people pledged nearly $320 million in 2012. Kickstarter hide caption

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Ever feel like someone is watching you? The Federal Trade Commission finds you could be right — if you've used a rental computer. iStockphoto hide caption

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