"People on the street can do that too, I better walk with a paper bag over my head."
But there is no one person on the street that can do that for all other people on all the streets on the planet. Concentration of information in one "brain" is the problem, not that not everything is top secret. There is a difference in the possible consequences between some neighbour on the street seeing you and someone having a database of all public movements of all people.
But there is no one person on the street that can do that for all other people on all the streets on the planet. Concentration of information in one "brain" is the problem, not that not everything is top secret. There is a difference in the possible consequences between some neighbour on the street seeing you and someone having a database of all public movements of all people.