3-letter agencies have reportedly been using RF for similar purposes for almost a decade https://www.usatoday.com/story/news/2015/01/19/police-radar-see-through

3-letter agencies have reportedly been using RF for similar purposes for almost a decade https://www.usatoday.com/story/news/2015/01/19/police-radar-see-through-walls/22007615/ https://www.usatoday.com/story/news/2015/01/19/police-radar-....