Z:gnu-www-ja-free-digital-society--3bea95-In a free society, when you go/en

In a free society, when you go out in public, you are not guaranteed anonymity. It's possible for someone to recognize you and remember. And later that person could say that he saw you at a certain place. But that information is diffuse. It's not conveniently assembled to track everybody and investigate what they did. To collect that information is a lot of work, so it's only done in special cases when it's necessary.