It's no longer a secret that the US government routinely, deliberately and invasively spies on their citizens with no regard as to privacy or pertinence of information. Now, it is emerging that they are actively trying to cover their tracks on a local level, as even average officers are using surveillance gear with extreme impunity.
The federal government has been oddly intervening at local public records and criminal trials that deal with information gained in a possibly over-invasive manner, which as Top Tech News reports, "resulted in police departments withholding materials or heavily censoring documents in rare instances when they disclose anything about the purchase and use of such powerful surveillance equipment."
One popular piece of such technology, the Stingray, reroutes the target's call and metadata to the police's receiver instead of a cell phone tower, bringing up serious questions of infractions on the Constitutional rights of those who are being listened to. Various affadavits and documents point to the federal government overtly refusing to answer questions about such technology's locations, design and operations prove that they are trying to cover up a plot that is legally-questionable and lucrative (both informationally for the feds and financially for Harris Corp....the Stingray accounted for nearly one-third of it's parent company's $5 billion in revenue.)
Unsurprisingly, the government and local departments' excuse for their secrecy is "security."
Dissonantly, President Obama claims he is welcoming debates on surveillance and transparency. Dial any number at all to talk to him regarding your feelings...if there's a Stingray nearby, the government will be happy hear you out.