From three years ago using wifi as a radar source to view people inside buildings, maybe it's "unofficially" in use you know experimenting, for science. http:/

From three years ago using wifi as a radar source to view people inside buildings, maybe it's "unofficially" in use you know experimenting, for science. http://www.wired.co.uk/news/archive/2012-08/06/wifi-radar http://www.wired.co.uk/news/archive/2012-08/06/wifi-radar