Breaking News: UAH - Biology Professor Dr. Amy Bishop Opens Fire on Staff Meeting Killing 3 Professors - Associated Content - associatedcontent.com
Here you go this is fairly recent, and she's well educated. Google or reading the news would be a good way to try and come up with some kind of concrete basis before trying to be arrogant in proving your point.
As for your points about police officers going "postal" and shooting people, I think that the ratio of officers flying off the deep end pales in comparison to civilians shooting. As with everything in life there will be skewed results and are not "normal" occurrences.
There is a reason that people in Iraq or elsewhere where foreign military is stationed tend to hide. Now, I'm not saying all soldiers abuse their power, but it does happen, and it happens for many reasons. It's a historical fact. Like the above, there will always be rogues. I'm also not just saying US military troops are guilty of such, most other countries are too.
US military in torture scandal | Media | The Guardian
Yes, I have shot guns, my uncle is head of the main gun club in the city. I know how to shoot a gun, and I'm pretty dang good at it. I've received the training and I respect guns. I respect all sorts of weapons because of my extensive martial arts training. Would I feel safe around armed civilians and I could see the gun? Not a whole lot. I would probably feel worse about it if I lived in the states because our gun laws and crime/murder rates are typically lower in Canada. Toronto has a lot of shootings now, and do I like going there? Not really. I probably feel that way because we aren't exposed to guns or gun violence as much up here, especially in my city.
At the end of the day there isn't much to argue because you cannot dictate the way other people feel or their comfort levels. I'm not biased to either side of this discussion, all I know and feel is my own opinion.