By hidden, I wasn't referring to guns just left in bags. The TSA calls it "artful concealment" - stuff like guns taped to steel plates (for X-ray shadow) or knives stuck in the bottom of deodorant. Maybe those people just forgot it, but that's a pretty weird thing to do at any time.
I don't see how sane plays into it - either they are sane and accidentally have a gun in their bag, or they are insane. How can you filter by sanity?
Point is, probably most of the people with guns, swords, etc are not malicious, but I haven't seen any statistics on that, only this 95% cited over and over again.
How often does that happen, though? I can't even recall last time I heard of a case of someone deliberately trying to conceal a gun or a knife in luggage.
I don't see how sane plays into it - either they are sane and accidentally have a gun in their bag, or they are insane. How can you filter by sanity?
Point is, probably most of the people with guns, swords, etc are not malicious, but I haven't seen any statistics on that, only this 95% cited over and over again.