Every 15th of the month Bruce Schneier’s cryptogram comes out. The first article was “A Video Screen That Is Also a Camera”. Not just a cam on the screen’s border, they’ve come up with a two-way pixel. Then he quotes Orwell’s “1984”:
“The telescreen received and transmitted simultaneously. Any sound that Winston made, above the level of a very low whisper, would be picked up by it; moreover, so long as he remained within the field of vision which the metal plaque commanded, he could be seen as well as heard. There was of course no way of knowing whether you were being watched at any given moment.”