I suppose I'm showing my age here, but Stingrays/IMSI-catchers have been around and in use for decades by both federal and local governments, and the problem of mass surveillance is not particularly an ICE problem. In my lifetime, the level of surveillance of the population has increased so dramatically that I'm not sure that younger people actually understand what it was like to live in a world where your every move wasn't monitored, recorded, and archived.

Privacy advocates have been fighting this battle for decades, but they have been utterly defeated because, by and large, people don't and can't be made to care about privacy until they learn the hard way (and when it's too late) why it's so important.