Military bases in the California desert could host seven gigawatts of solar power installations--roughly equivalent to the output of seven nuclear plants--according to a study commissioned by the Department of Defense. Study director Robert Kwartin discusses the report.
In his book Concrete Planet, author Robert Courland discusses why the concrete first used by the Romans is more durable than the concrete used in most present day buildings. Plus, mineralogist Peter Stemmerman tells us about his invention, Celitement and why it is greener than Portland cement.
Federal regulators signed off on the construction and operation of two nuclear reactors at a Georgia plant. It's the first license to be granted for a new reactor in the U.S. since 1978. Nuclear expert Per Peterson discusses the reactors' design, safety features and what this means for the future of nuclear power.
Congress is considering several versions of a comprehensive cybersecurity law, which lawmakers say is needed to ensure critical infrastructure is protected from cyberattack. But civil liberties groups are concerned the bill creates a backdoor for law enforcement to eavesdrop on private communications, and could be used to avoid wiretapping laws.
Apple is under pressure by consumers and lawmakers on Capitol Hill to enforce its rules when it comes to iPhone apps that upload users address books. Several social media apps, such as Facebook and Twitter, can gain access to a phone's address book, and users often aren't warned what's happening.
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