This is 1984 writ large. This is East Germany, USSR stuff where you never know who is reporting back to the Stasi or KGB. Could be a friend, coworker, acquaintance, family, checkout clerk. Literally anybody. It leads to isolation and psychological stress and trauma because you can trust nobody. Can you even trust your wife? You children? Spying on the citizenry in such a way is reprehensible. Pure evil.