Wi-Fi Signals Could Be Useful for Spies

Some researchers from Carnegie Mellon wondered if they could use Wi-Fi to record the behavior of people inside otherwise unobservable rooms. How accurate can they get? This is the key. They can find as many as 17 vector points on a body. That's, you know, that's more than 17, but that's not that far off. Off a Wi-Fi signals. The powers that be are fixated on keeping score. And there's a lot of useful information to be gleaned.