https://motherboard.vice.com/en_us/article/a3aaqp/mit-device-uses-wifi-to-see-through-walls-and-track-your-movements?utm_source=mbfb
The fabric of the fringe
https://motherboard.vice.com/en_us/article/a3aaqp/mit-device-uses-wifi-to-see-through-walls-and-track-your-movements?utm_source=mbfb