I'm in favor of CCW by people who show a proficiency with their gun, and an ability to make sound decisions. But not on airplanes with a few exceptions.
So CCW requirements are more stringent than police requirements?
How about on a bus? Should a cop carry on a bus full of people? How about CCW carriers?
Here's the thing-- there ARE times when a man with a gun can stop a tragedy on an airplane. If a cop can't be trusted not to shoot and pierce the skin of the plane (which I assume is your concern-- more on that later), then how can we trust him not to just randomly shoot, say, in a crowded theatre?
As for the bizarre post about the off-duty Detroit crackhead officer, what of it? Should she have been disarmed, arrested, and fired? Absolutely. Funny, sounds like that's EXACTLY what happened. Did she slip through the cracks? Yep, and it's a damn shame, but life is imperfect. The good part is, though, that she'll never be a peace officer again, anywhere, for the rest of her life. Hey, we had one (deputy constable) down here, too, but his taste was meth. He was caught, and we of the local LEO community were utterly shocked and angered. The fact is, though, it's news because it's so rare. Frankly, what's more common is the cop who can't climb out of the bottle. I've seen two examples of this. Both officers, though they had long carreers, were fired (NOT asked to resign).
Does this mean most cops are bad or untrustworthy? Obviously not. Does this mean that the presumption must be that cops are unsafe? No. (Who am I telling this to?) Good screening and good discipline should weed out the problem cops that show up, like that NYPD officer the other day who ran while his partner was being pumped full of holes.
But it sounds to me like you're proposing a British bobby system, in which NO ONE --even the street cops-- are allowed to be armed. Oopsie, sometimes the bad guys forget to follow those rules. Wouldn't it be nice if AT LEAST the people we put our trust in to make lawful arrests and keep the peace, who have received a minimum of firearms training and who are required to carry safely on a day-to-day basis, could carry the means to deal with a tragedy-maker? If the street cop isn't trustworthy enough, who do you trust? I'll bet we could dig up dirt on screwups by TSA enforcement officers, FBI, DEA (famous one with film footage, we know), Federal Marshalls, Secret Service, etc, etc. Dang, it's just too dangerous for ANYONE to be armed. Maybe we should just park the plane.
What about the pilot? I mean, he knows what the plane's capable of. He's at the controls anyway. From the time that he enters the cockpit to the moment the turbines stop at the terminal, he literally holds the lives of all aboard in his hands. Cant' HE be armed?
As for the dire consequences of putting a bullet through the skin of a 737, I've done some reading on this, and the consensus is... that there's no real consensus. Most feel that, while the cabin pressure would lower, the plane would be plenty controllable, and the worst that would happen is that the passengers would get to use the 02 masks while the pilot descended to 12,000 feet. The movies have exagerated the concept of Explosive Decompression so frequently that it's taken as gospel as a plane-wrecker.
And what if it were a high risk? What of that? Tell me this-- wouldn't you have rather all of the flights on 9-11-01 have gone down like the one in Pennsylvania, if they had to go? If another plane goes down, I want to know that Americans were on board, fighting and winning at preventing a terrorist's target from being hit. Give them the chance to win their lives, too, please.