Our ability to keep our private business private has been declining steadily for decades, but it's not often recognised that the decline takes two quite separate forms.
One is that information that was available to the public, but only easily available to a relatively small number, is now very easily available to anyone who wants it. That is a simple result of information technology that makes the communicating of all information easier. It ranges from simply inverting the index of a telephone directory to make it easy to identify a person from their telephone number, to businesses compiling and trading details of their customers' shopping habits.
The other, quite different phenomenon is that the government is demanding, with legal force, information that by previous standards would have been totally private. They demand to be informed of every transaction of various types, even if all parties would rather keep them private.
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