IOW, these RF cameras pick up any damned thing.

A new technology could spin out of these undesirable effects. I mean, it already seems to me to have some value snooping on people and controlling what they see and hear. It's actually pretty scary. Think what you could do being able to control an effect as replacing one video image with another, or listening in on what people are tuning into. I remember seeing an X-Files episode similar to that. And we're really not that far from it.