Judge Releases Information about Police Use of Stingray Cell Phone Trackers 12 years ago
Honestly, this is all being done over public airwaves. It may be an FCC violation (cell phone jammers?), but I don't think that's what the ACLU is upset about here.
The part that seems shady to me is that Verizon appears to think it is OK to give out customer information to law enforcement without a warrant. Without being able to tie a device ID to a person, its all just a bunch of numbers.