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Wearable robots are making walking a reality for paraplegics in rehabilitation centers around the country. But before Iron Man-like suits become mainstream, they'll need to overcome cost and regulatory hurdles.

For a fee, Silent Circle erases messages from both the receiver and the sender's phones. The app's creators got the idea after hearing an all-too-familiar story: A friend of theirs inadvertently read a text meant for someone else.

Google took down the YouTube video blamed for inciting Middle East violence — but only in Libya and Egypt. These days, it's often companies, not governments, making these decisions on behalf of millions of people.

Many popular videos on Facebook originated on YouTube, and YouTube stars say it means they're losing money. Facebook says it takes intellectual property rights seriously and is working on a solution.

The Senate approved a measure that's meant to stop hackers, but opponents cite privacy concerns. The bill would create a pipeline for firms to share information on attacks with the government.

The perils of mistaken email identity.

As Apple's smart watch goes on sale, there are some big questions about the whole idea of the wrist watch as a computer, including whether consumers come to see them as a luxury or a necessity.

The Anti-Defamation League says the gesture that traditionally signals "all is well" has been hijacked by the white power movement and is routinely used in racist memes and other online content.

The FTC has approved a $5 billion settlement with Facebook that could end an investigation into the tech giant's privacy practices. NPR's Ari Shapiro speaks to Emily Glazer of The Wall Street Journal.

The Fitnet app uses your phone's camera to analyze your workout and give feedback. Next step is a live trainer on the other end. The hitch: Your Internet speed likely needs to be 40 times faster.