As Mike covered here earlier, Sens. Grassley and Leahy are asking the FBI for more answers on its Stingray usage. Not that anyone should be holding their breath in anticipation of a response. The government‘s use of Stingray devices has been actively hidden from the public (and criminal defendants) for years. Local law enforcement‘s use has also been hidden, thanks to a bizarre set of non-disclosure agreements, both with the manufacturer (Harris) and the FBI itself.