At the risk of upsetting some of our American cousins (and I am a big fan of America), I feel the need to urge caution. I realise that 'the right to bear arms' etc is a big deal over in the States, but it can only lead to disaster if people start carrying guns on aircraft. The sad fact is that the hijackers of Sep 11 were only lightly armed and relied on a combination of surprise plus creating an atmosphere of terror disproportianate to their actual capabilities. Perhaps more crucially, the conventional wisdom of the airline industry also advised flight crews to aquiesce in the face of terrorism in order to save all lives on board, and get the aircraft on the ground to let the authorities sort the problem out. That doctrinal error played directly into the hands of the hijackers, because the pilots ultimately (and totally understandably) handed control of their aircraft to these guys believing that they were saving lives. The chances of a successful hijack in the USA now are virtually non-existent because all passengers will rise up and fight to the death - a situation that was inconceivable before Sep 11.
Where does this lead? Simply that there is now no need to have guns on board because you are potentially providing hijackers (who as we now know are happy to die in achieving their aim) with real guns to fight with after they have overpowered the crew.
I know this is a very sensitive subject in the States, but I have to say that the evidence is simply overwhelming that 'good people' with guns for self protection end up killing far more people than they save. There will be accidents, as can be seen from the statistics in the USA. Here in the UK we are simply not allowed guns, and that is almost universally accepted as being the 'right thing' to do. We have about 100 firearm-related deaths each year. In the USA, where guns are freely available you have about 40,000 deaths (can't remember the exact figure but it is about that) each year. The vast majority of those are silly arguments or accidents. I suggest that if the FAA are foolish enough to permit guns on aircraft, there will be far more tragedies than rescues. It would be a highly retrograde step to contemplate carrying guns on flight decks. Maybe you should rather be fighting to remove guns from your society as the evidence is overwhelming that it will save thousands of lives.