Ars Technica has been following Stringray stories for a while.
This article shows that the FBI are involved in a country-wide plan to hide the capabilities of Stingray. And this article shows that the FBI would rather prosecutions were dropped rather than details of Stingrays be revealed.
To me, there's a lot of effort going into hiding what Stingray can do, which doesn't bode well for what Stringray really can do.
The problem law enforcement are going to start having, is as more questions are asked in court (and cases dropped to avoid answering them) the less the cops are going to be able to use them. Their real problem is when a Stingray is used in a high-profile case: Drop the case and have public condemnation or reveal what Stingray actually does.
Biting the hand that feeds IT
