I remember hearing a few years ago that the elders were looking at installing cameras outside pointing toward door and buzzer all to be operated at music desk.
They wanted to be able to have someone push a button from outside where and have a light blink at sound desk so he could see thpeppers on and buzz them into the building. As far as going outside once in, they wanted to have a Ms or elder be at the exit door to make sure no one could come in after someone had just exited.
He said that they have had some threats locally and wanted to secure the building.
Never did install it that I know of.
NJY