A "reasonable expectation" can only ever be a standard for conduct rather than a law. The important part of this perspective is that members of the general publ

A "reasonable expectation" can only ever be a standard for conduct rather than a law. The important part of this perspective is that members of the general public are allowed to conduct their affairs without monitoring or intrusion by default, a baseline if you like. From there it become much easier to determine whether people in positions of authority have a credible need for surveillance. In the free-for-all, unless explicitly banned, world that we have today this is impossible to control.