A fun thing to look at is <i>where</i> those happened. Texas, Georgia, Arizona, Colorado, Florida, Tennessee. I did a quick search on each of these states, and they all have very liberal firearms rules. What are the odds that most of these were quite innocent mistakes? E.g. you always carry, and you forgot to leave it at home locked up.<p>I&#x27;m Canadian, but I have a similar story. I was travelling with my mother, and my backpack was swabbed and X-Rayed at security. No problems. It wasn&#x27;t until I got home and was unpacking that I realized I had a bottle of aerosol nitroglycerine (!) in my carry-on! My mother&#x27;s got a heart condition and I was carrying around a spare canister just in case something happened.