I thought I was the only one who had no problem with guns in a church. Glad I joined FR!
I remember an episode of Unsolved Mysteries where a man broke into a church while service was going on, ordering the congregation at gunpoint to get on its knees, and then shot and killed the minister. He then fled the scene. If someone had had a gun at the service, he wouldn't still be at large today.
I heard of a church in Garland, TX where most of the cops attend. Supposedly, one Sunday an enterprising young criminal decided to attend the church until the plate was passed, then hold the church up and steal the take.
When his big moment arrived, he made his play only to find himself surrounded by armed off-duty cops.
I have no idea how true that story is, I have no first hand knowledge.