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Interior Decorating for the Security-Conscious

Researchers at the University of Tokyo say they’ve created a paint that blocks out wireless signals, reports the BBC. You can use it, for example, to make sure your neighbor doesn’t steal your wi-fi, and movie theaters can use it to stop cell-phones from interrupting films. Critics say the paint still doesn’t stop hackers, and it’s probably cheaper to set up a wireless-protecting encryption than to redecorate a whole room. [%comments]