you must watch alot of tv. a bullet will cause a leak, but a bullet isnt goin to rip a giant hole in the plane that will kill 300 people. i am pretty sure this has been disproved everywhere but hollywood.
My bad. Should read "blows a hole in a fuel tank located in the fuselage." Or a window which would cause the whole cabin to depressurize and possibly cause severe problems. I guess catastrophy may not be gauranteed , but I still am ok with airplane prohibitions.