Homeland Security analysts watch for threats to U.S. technological infrastructure at the National Cybersecurity and Communications Integration Center. Jim Watson/AFP/Getty Images hide caption

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An undated screen grab, released by the Kaspersky Lab, showing some of the programming behind Flame. AFP/Getty Images hide caption

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The Air Force's U-2 spy plane first took flight in August 1955 and has been in commission ever since. USAF/Getty Images hide caption

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As headphones and earbuds become common in the workplace, sometimes even co-workers sitting next to each other are communicating online. hide caption

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Thomas Edison called the linotype the "eighth wonder of the world." Copyright Linotype: The Film hide caption

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Hugo Campos' implantable cardioverter-defibrillator was a mystery to him. So he decided to ask his doctor for access to the data. He made this image with one of his own X-rays. Hugo Campos hide caption

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Katherine Leon says she spends up to 12 hours a day online interacting with others who share her rare heart condition. Emily Bogle/NPR hide caption

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