It looks like the Stingray tools law enforcement agencies have been using to track cellphones are even worse than we thought. They also have the ability to record your calls and access your text communications, according to Justice Department documents obtained by the ACLU. As Wired points out, that's something privacy advocates have long suspected, but these documents are the first to prove that. To refresh, Stingray devices are used by law enforcement to mimic cell towers and trick nearby phones into connecting to them, which gives up their locations. The documents note that you can also use the devices to wirelessly flash a phone's firmware and use a cellphone as a bug. Given that these documents are from 2008 though, it was most likely referring to flashing older cellphones, and not complex smartphones. Now the documents don't mean Stingray devices were actually used to record calls, they just give us a clearer sense of their abilities.