I am part of our church security team. It is a very complicated situation in our case. First, the insurance company discourages it and then they have their requirements that are ridiculous. One is your local police department has to approve and sign off on your plan. I called the police and they just said, we don't do that. So now you are left with a bunch of people who have CC permits. That's great, most wouldn't be a threat to an elderly lady with a walker. In the end, each person ends of being pretty much on their own as if you say that you are part of the security team and anyone mentions firearms, you just implicated the church. The other issue like some have said on here is just the size and openness of churches. We have around 200 people and I have attended churches 3 to 4 times larger. Then you likely have multiple entrances and also multiple entrances into the sanctuary. In our church we can get to know most people coming through our doors but there is that person you don't know. I became convinced after multiple meetings and drills that the last place I would ever want to get into a fire fight is a church with so many people everywhere. Ultimately for ME I have already decided if I can, I am going to try and take the person down physically rather than risk shooting into a large room with panicked people.