A new application of WiFi could take surveillance to the next level.
WiFi already makes a perfectly good tracking device – government and law enforcement agencies already collect location data from phones and computers – but ultimately, its accuracy is weak.
Now, MIT tech geeks have found a way to pinpoint location and track complex movement patterns with far greater accuracy – and what’s more, it can track people’s steps through walls, and the individuals or groups don’t even need to carry a cell phone .... http://www.shtfplan.com
