We don't need guns in every pilots case or on every flightdeck,I think security is best served if it is impossible to tell,by anyone,
what security will be applied to a particular flight. So when the next time Fred Flintstone and Barney Rubble decide to go flying, they will have no way of beating the security- because they wont know what it will be, perhaps skymarshals or armed pilots or non pre selectable seats or whatever and in what combination.
If we have predictable security, then it can be beat!
Regards to all , and AA your welcome