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This is why laws and regulations need to be passed by Congress, rather than allowing bureaucrats to just write stuff and start enforcing their new "rules":
In 2001, the FCC required that all wireless devices "be able to locate 67 percent of callers to 911 within 50 meters that elect the handset solution while those using network technology must be able to locate the caller within 100 meters," a rule that expanded to cover all new cell phones by late 2002.
The idea was to enhance 911 services. Great idea, but poorly conceived. There is a law that bureaucrats rarely consider, but it has wide-ranging effects. It's known as the Law of Unintended Consequences. And the FCC bureaucrats walked right into it.
By mandating that location services be built into mobile devices as a means toward assuring rapid emergency response, but failing to specify sole-purpose application, the agency opened the door to other applications of the technology, and it is these applications that Congress is now "investigating".
Congress, look in the mirror.
If you really want to understand how this situation came to pass, look to yourselves. You've abdicated responsibility to the myriad of agencies that you've created.