Insecurity of American Telecommunications.

When I was in the military, we sometimes used a sophisticated piece of equipment called "Stingray" to hunt down Taliban and AQ targets. It's entirely possible at this point that your local law enforcement could be rolling around using one of these to vacuum up info on anyone who comes too close, which could be as far as 5km or more if they're willing to crank up the signal output. Our telecommunications systems in the US (and around the world) are grossly insecure and in need of a major security overhaul.