machine vision has learned to use radio waves to see through walls and in darkness 1984, know, privacy, surveillance, technology, weapon https://www.technologyreview.com/s/614470/machine-vision-has-learned-to-use-radio-waves-to-see-through-walls-and-in-darkness/?utm_term=Autofeed&utm_campaign=site_visitor.unpaid.engagement&utm_medium=tr_social&utm_source=Facebook#Echobox=1570630424