The US Government Doesn't Want You To Know How The Cops Are Tracking You

"Some of the government's tactics to hide Stingray from journalists and the public have been downright disturbing. After the ACLU had filed a records request for information on Stingrays, the local police force initially told them that, yes, they had the documents and to come on down to the station to look at them. But just before an ACLU rep was due to arrive, US Marshals seized the records and hid them away at another location, in what Wessler describes as 'a blatant violation of state open-records laws'".