Re: It already has a law a bit like it
The funny thing with the US is that there are reasonably strong controls over what the government can do with the data of US citizens but virtually nothing about companies.
Which provides a convenient loophole for government / LEOs, who can just obtain tracking data from private companies. No need for Constitutional impediments such as warrants, since the .gov is not technically performing the surveillance activity.
A few examples (of many): wired techdirt zdnet etc
Pro tip: Whenever an LEO describes something as "just another tool," the phrase "for creating an Orwellian dystopia" should be appended.