Now, knives could only be used to commit a crime i.e. assaulting another passenger or crew. Banning liquids does more to prevent terrorists than banning knives. I can see banning them for the same reason concerts ban them, that it is a lot of people in a small space, but that is very different than “national security” or “preventing terrorism”.
It's not a great analogy, but the same applies to registered concealed carry gun owners. They're not the people who shoot people.
Still screened and detained 100 percent of the time, sometimes for hours, sometimes having to surrender personal devices, decades later.
The message is very clear.
What were you hoping to achieve by sending that report?
Most people would have just thought "wow, lucky I wasn't caught with that", taken it out of the bag so it didn't happen again and carried on with their lives.
Deviating from that normal response makes it look like you're just trying to cause trouble.
As I wrote in a very different thread, I avoid putting anything in baggage that I might carryon that is even marginally prohibited. I used to do a lot more travel and it's inevitable that knives and the like would inevitable get left in a pocket.
Officer: Look at this knife. You're trying to take this on the plane?
Me: Holy shit I didn't realize that was in my bag.
Officer: Well do you want it back? Or do you want to fly today?
Me: I don't want it.
Officer: Don't mind if I keep it?
Me: It's all yours.
It was a $13 knife, but he liked it.
No doubt that was a security violation, but it's all security theatre.