From my experience, at this point a lot of this is due to the gun violence that has occurred in the U.S. For example, at the Mayo Clinic last month the CEO reported that 30,000 weapons had been identified within facilities in the U.S. Those are actively captured weapons that were prevented from being introduced into facilities.
An approach has to be able to account for, number one, a staff member alerting that they need help, and, number two, enabling them to have the training to be able to respond to that scenario. Of course, number three is really preventing anything from getting inside the facility. There should be no reason for any type of threat article to make its way into a facility.