If people try to get into WDW carrying a gun, why wouldn't they try to get on a cruise?
The best way to handle this is, do not think about these things or you will make yourself crazy and never get out of your bed. Who knows what your nextdoor neighbour is doing. It doesn't have to happen when you go somewhere, danger can also come to you.
After some googling, TSA says they can recognize also 3D printed guns. But I wouldn't worry about that either, as they are not working very well and are unreliable, the firing of bullets damages the gun, so after using it maybe once you can throw it out. That is not something for a gun enthousiast. Also, how many people have access to a proper 3D printer? If you really want to harm someone, isn't it easier in the US to just go to a store and buy a gun?
I figured 1) Cost of fare. 2) Kinda have to sit at the scene of the crime too many days.
Also I know airport TSA has better/higher grade systems in place because of high traffic volume. So was curious, but not worried, about
DCL. Still don’t think DCL is a place that would have a problem from a customer.
Probably also asked since 2 neighbors three blocks down were killed a few years ago. Homes on both sides of our house are over $1 million each. Not ours though but, I’ll never say never to possible dangers. The plane just after my flight crashed in NYC.
You had several questions at the end I’ll try and answer them.
You don’t have to own a 3-D printer to purchase a 3-D gun.
Criminals with felonies cannot own guns. But might possible ownership for misdemeanors I really never looked that up.
Some people like an untraceable guns, and store purchase would take your name and address.
I’m okay with guns in America but feel that they are frequently in the wrong hands. That’s why I asked about 3-D print or ghost guns because they seem shady and Media claims harder to determine.
Nobody can protect against all threats, but Disney's procedures keep you safer than your local grocery store, so keep that in mind when deciding. And as others have said, try not to fixate on it. It's like how people are afraid to go to the beach because of shark attacks but will sit in rush hour traffic an hour or more every day even though driving is far riskier.
Not fixated, not weighing danger level, just was curious about 3-D guns. I grew up with guns in the house, shot several of them a few times, have a permit but no guns now. Just don’t have a use for one right now or in the future.
I also didn’t have a 3-D gun growing up so I’m just curious. I don’t think they find those as easily.
So my question is not of fear to the parks or the ships. More a finer point to op’s question.