I just cleared security at TSA's Terminal 1 checkpoint at SAT and I saw something odd. Right at the end of the checkpoint after the area where you put your bags back together there was a wire strung perpendicular to the direction of travel with microphones hanging off of it at intervals.

I'm wondering how this is legal. Even in a single party state with the assumption that every TSA agent has been briefed they are still going to catch conversations that they are not a party to.

Also, I saw no signs notifying us of this.

What does everyone think?