the real spying if they do it or are doing it is probably going to be related to reading your mind and a receiver for that won't look anything like a camera. could be a special coil of some kind. The brain waves have a radius outside your body. A cell phone would be really advantageous for incorporating any such technology since you hold it next to your head. I also believe they've worked on ways to transmit waves that effect the brain. There's been quite a few news items over the years on this research. All this has been done by actual researchers for a long time. This is why some after reading such research end up with tinfoil hats for real lol. The idea is to block the waves from leaving or entering with the tinfoil acting as a Faraday cage for the brain. The lol might be that the tinfoil hat guys aren't crazy. (to hh6 and others, no I don't do this.)