Re: The onward march to the underground!
"I'm sure these people realise that once you pass laws where you can obtain data then the people whose data they want will just move it somewhere they can't get it."
I don't think they do. The thought patterns of legislators are such that they must believe that if they forbid something everyone wanting to do that will simply avoid their efforts. The history of taxation or banning of alcohol, for instance, has provided centuries long evidence of this in the form of smuggling and illicit distillation.
Living inside a bubble where a host of employees including the most senior officials are doing their bidding* seems to convince those who've reached the top of the government tree that they really are all-powerful.
* Or at least persuading them they are.