There was an active shooter in our area a number of years ago and they locked the building down. No one was injured, it was a domestic dispute in a neighborhood

There was an active shooter in our area a number of years ago and they locked the building down. No one was injured, it was a domestic dispute in a neighborhood a few blocks away. The police caught the guy hiding in some bushes. In response to the perceived need to "do something", my company put cameras in the hallway we share with other companies and gave the receptionist monitors for the cameras and a panic button that locks all the doors. It's not a terrible thing, it's largely security theater though. Someone would have to be clearly brandishing a weapon and our receptionist would have to notice this amongst all her other duties and out of all the people in the hall. It could happen, but it seems unlikely.