Originally Posted by HSVTSO Dean

Shortly after the x-ray machines and the WTMDs go down, the public safety guys (i.e.; the APo) make the decision to evacuate the concourse. They shanghai a couple of the TSOs to help move the passengers in the checkpoint at that moment in time down to the tornado shelter, and the rest of us hike out to another tornado shelter.

Ten minutes later, they give us the all-clear (a tornado was not, in fact, about to demolish the airport~) and we go back to the checkpoint. On the other side of the still-closed-and-locked gate are about 300 passengers wanting to get back into the sterile area.