5 cases is not very many, considering how long guns have been legal in this country and illegal in others. Doesn’t seem like a problem at all to me, just check your shit if you commonly carry murder implements around. 🤷♂️ Idk what else to tell you, these people didn’t even get punished.
And I bet they never forget to check their bags for tools of death before international travel ever again. I really don’t know how you could, if that’s something you commonly carry around. It would be on mind constantly.