Safe on an Airplane

I no longer feel safe on a airplane. I accidentally carried on board an international flight a 10" Cutco knife. Jacquelyn came to and asked, "Have you seen the cutco knife that we packed?"Since we had a delayed and damaged suit case, I immediately assumed it had fallen out of that bag. But then she said, I had put it in your computer case. I said, "Well, there's no way it's in there. Otherwise we would have security questioning us on why we were trying to bring a 10" knife on board". Plus, I have been using my case all week with no inclination that there was a knife in the bag. So, we took out all the stuff and low and behold, there it was, wedged at the very bottom of a side pocket. Hmmm....