Andy Leer of maker space chain TechShop calibrates a 3-D printer at a GE-sponsored pop-up workshop in Washington, D.C. Maker spaces, which offer access to industrial-grade tools, are attracting support from governments and big companies like Ford and Lowe's. Gary Cameron/Reuters/Landov hide caption

itoggle caption Gary Cameron/Reuters/Landov

Twitter CEO Dick Costolo says the company has to bridge the gap between the brand's global awareness and user engagement. Ethan Miller/Getty Images hide caption

itoggle caption Ethan Miller/Getty Images

Computer hacking experts from the National Security Agency and various branches of the U.S. armed services try to break into remote networks set up by competing U.S. military service academies. The hackers'€™ war room is in a building in Columbia, Md., owned by Parsons, a U.S. defense contractor. David Welna/NPR hide caption

itoggle caption David Welna/NPR

The Supreme Court is hearing arguments in two cases over whether law enforcement can search cellphones obtained at an arrest without a warrant. iStockphoto hide caption

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Nathan Drake (foreground) is the lead protagonist of the Uncharted series of games for the Sony PS3. His character is just one in a long line of games where the dominant figure is a white male action hero. AP/Sony Computer Entertainment Inc. hide caption

itoggle caption AP/Sony Computer Entertainment Inc.