So you would happily have all the people onboard a flight engage in a gun battle in mid flight? And I can imagine that these situations would be entirely hectic, it wouldn't be out of the question for innocent people to be shot dead in all the carnage. And once again, it's not as simple as 200 people vs 4 terrorists (Worth noting that there were only about 40 people on Flight 93, but I guess we're talking in general terms now), it's 200 people vs 4 terrorists vs 1 plane. You have people misfiring and you'll get the cabin depressurising, and that's not taking into account potentially shooting pilots, cockpit controls, wiring, fuel tanks and engines.
The number of flights where guns *could* have prevented deaths is surely way smaller than the number of flights that would be put into danger because of civilians bringing armed guns onto planes. Surely that's obvious.








