if the officers are exposed to a sudden armed attack (since it is likely that if the perpetrator knows that the school is protected, he will first plan on eliminating/killing the armed guard or guards) they will more likely become victims than they will be able to stop the attack. My youngest son's high school, not too many years ago, had an armed police officer seated at the desk where visitors were supposed to sign in. If there were an intent to kill students or others, it would have been extremely easy to just walk in and then shoot the officer, thus eliminating the only armed individual who could stop the shooter.
I think that's the most valid point of all. Having armed security at a school is probably a good thing in general since there are many security and crime issues at any large school. Not just an active shooter. This is why Tulsa Public Schools have their own police force. Not because they really thought somebody with a rifle was coming in the front door. But they were worried about drugs and child abduction (by divorced parents) and gang activity, etc, etc. For those sorts of things, having a cop with a badge and a gun has really made a difference. But one or even two armed guards that are always in the same place... a local who knows the layout will target them first. Been done before.
That's why I think the only real "hard target answer" is to arm a few "somebody else's." Whether that is teachers or administrators or the janitor... your choice. But it needs to be the individuals in the school that are the best qualified based on previous life choices. And who WANT to carry the gun. AND... very important... nobody in the whole school knows who they are. I guess the Principal but that's it. Not other teachers, not the kids, nobody. When somebody with a gun comes in, they don't know whether it will be the math teacher or the football coach or even the American Lit teacher that will suddenly produce a gun and engage them. Not necessarily killing them but tying them down. Stopping the free movement. Creating an interruption to allow time for the paid good guys with badges and better firearms to get on the scene.
One example... I'll use myself. I've been shooting and enjoying guns since I was six years old. Always been my favorite thing. I joined the US Army when I was 21 at least partly because I wanted to get to shoot guns and bigger weapons that I would never otherwise get to enjoy. Also the reason I went in enlisted even though I had 76 hours of university at that time. I was in for 3 years and 5 months. Then I joined the Active Army Reserves and was a Drill Sergeant for 4 years and some months. So I officially have 8 years time in service. I was a 16H so I was in a combat MOS. And I was cross-trained to be the unit armorer. I have a LOT of time with weapons in my hands.
When I got out, I went into teaching at the university level. I taught at OU in Norman. And I taught as an Assistant Professor at Rogers State College in Claremore for several years. Then I discovered I could make more money fixing computers than teaching. Eventually I thought about going back into teaching so I got my OK teaching certificate. I did the substitute teaching thing for a while at all grade levels but that just wasn't me. And I never could figure out how to move up to a full time permanent teaching position so I moved on.
I've had a concealed carry license for over 10 years. I have my C&R. I needed some extra money at one point so I took two semesters worth of classes and then took the test to become a licensed OK Security Guard. I did that full time for a couple of years.
My point is... I have a hard time believing that many people would deem me to be unqualified or dangerous to carry a gun secretly but full time in a school. I'm a 51 year old married man with two children. I've managed to carry a gun all these years and not suddenly go into some kind of irrational rage. Avoided shooting people that hit my car or otherwise "irked me." I think I've proven myself. Once I get the opposing viewpoint person to admit that they can't really say I'm not a great choice to carry in the schools... I point out that I'm not unique. It's just not possible. We have many mega-thousands of prior service soldiers and Marines out there. And a whole lot of them now are combat veterans. Many of them have come home and gotten their CCW's and carry every day. And some small percentage of them have gone into teaching. I'm willing to bet that nearly every school has at least a couple of them. There are your candidates.
I've felt for years that I'm sort of an unpaid asset to my community. Nobody sends me a check or otherwise even realizes I'm there, but the fact is that every day I'm in town or around the area with a concealed firearm. With all my life experience and training guiding my actions. The cops really can't be everywhere at once. But we HAVE to recognize the fact that we have a giant and unappreciated resource in every town in America. Utilize them rather than putting up No Guns signs that make them feel like they are the criminal!!!!
Gregg