EAS
The Emergency Broadcast System (EBS), occasionally called the Emergency Broadcasting System and sometimes called the Emergency Action Notification System (EANS), was an emergency warning system used in the United States. It replaced the previous CONELRAD system and was used from 1963 to 1997, at which point it was replaced by the Emergency Alert System.
I bet it was easy to get those GoPro Sessions hidden in the room…
Will we get to see the video?