I remember the times when people used to say "This is not for the telephone". We tried to analyze the clicks and background noises to identify when our conversations were monitored. Under communism people disappeared for saying things on the phone or writing something in a letter that the regime considered dangerous. Solzhenytsin, for example, was sent to the Gulag for a jovial observation about Stalin in a private letter to a friend. What we dont realize is that today all of our communications on the phone and the internet are open and easily monitored by hundreds if not thousands of organizations, using keywords or other statistical methods, building complex profiles of what we are and with whom we communicate and what are the probabilities that they could sell us something or that we vote for somebody. No one is disappearing in our democracies, but I'm sure careers and opportunities are deflected by our image built by the computers.
My uncle never wrote a letter, probably because he was thinking that anything could be used against him in some unknown future. I have almost no pictures of him. He is dead and his fears (if he had them, I dont really know) resulted unfounded. Today, the computer profiling is so developed that no harm can fall on a decent, moderate, well-intentioned person like me. There are people out there who think differently.