I like the *notion* of comparing what was to a traveller available in the past to what is available today. However, my reaction to the photo and caption on the right was "NO CHANCE." Part of the reason I think the airport security regulations are ludicrous is that "today" (i.e. post-9/11) I believe that a terrorist armed with a box cutter, knife, pistol, or even machine gun is almost certainly going to be mobbed by the passengers, whether or not the passengers are armed.
I believe a big part of the reason 9/11 "worked" for the terrorists is that all the sheeple believed they would be flown to Cuba and held for a day or so as hostages, then they'd go home. Few imagined that the acts the terrorists had in mind were possible, so the passengers were passive. The story of Flight 93 shows what informed passengers will do.
So, if you are trying to say that modern travellers ought to be allowed to be armed (with which I would agree), then I don't think your caption does it.
Perhaps putting the modern photo into past tense would help - something to the effect that those on the planes on 9/11 should have had a chance to defend themselves, should have had arms allowed. If I can think of specific verbiage I will let you know.
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