It's not always the rampers with SIDA badges that need to be worried about...
http://en.wikipedia.org/wiki/FedEx_Express_Flight_705
"The then 42 year old FedEx Express Flight Engineer Auburn Calloway, an alumnus of Stanford University and a former military pilot and martial arts expert..."
Yep. That's the gapping hole in the FFDO program...
The 911 hijackers didn't use guns. They had box cutters for Christ sake. The crews had Crash Axes in the flightdeck. The policy at the time was "cooperate don't escalate" hence the crews gave up the cockpit voluntarily. WOULDN'T HAPPEN THAT WAY AGAIN.
Firearms on the flightdeck pose more problems than they thwart...
Gapping hole? You obviously havent gone through the program. Your scenario above may have been stopped if they had to go through the FFDO program. Pilot Physiological conditions aside its about as good a program you can do and has been a huge success measured by numbers and statistics. You have motivated Pilots stepping up to the plate for the sole sake of safety. No pay, lots of extra continuing work/training, huge liability exposures etc.
You have other Law Enforcement, Doctors, Lawyers, Politicians, Teachers, Postal Workers that occasionally make the news for going off the deep end. I would put the Pilots profession up against any of the other professions with regards to stability. A Pilot that is unstable to fly doesnt need a gun or additional security to do major damage. They have there hands on the control wheel, think about that!
So we can agree to disagree. As long as there is people out there willing to DIE (and take everyone with them) we need to be prepared. If you want to be unprepared thats your choice, I choose to be prepared! We can never let another 911 happen on our watch. Mine and my families future depends on that.