Modern electronics have fantastic potential; for good or evil, depending who you are and want to do.
To see the vulnerability, watch “Scam Interceptors” on BBC TV. They can hack into even the CCTV systems of scammers and even pinpoint the building, in the city from which they operate, as well as showing nthe scammers screen inages.
Many years ago, at a talk on GPS, I was told that Russia had satellites that could locate you to within a few yards. About that time I was shown a US film taken from 65,000 feet showing an articulated truck on the road. You could tell the make from the badge on the radiator grille. And that was what they were prepared to make public!
More recently, note the ability to choose which window through which to project the missile!
With Wi Fi on our computers, it should not be too difficult to incorprate spy software. A car radio which reports your movements (Mobile phones allow you to be traced) and your speed should not be to difficult for the spooks to produce.
Adjusting the volume on one hearing aid, reacts on the other!
Big Brother has been watching us since 1984, or before, and gets better every day
Howard