You know full well there is no single organisation of AQ -- with a central command structure -- that has existed in continuity since the planning and execution of 9/11. The links between any groups in Syria who fight under the flag of AQ and those who carried out the 9/11 attacks are non-existent beyond a shared commitment to an ideology and the brand of AQ. They are hardly the 'same men'.
Nobody is denying that these people are nasty pieces of work and that their kind of politics should have no future role in the Syrian state, and that the West needs to be very cautious about allowing more arms to come into their hands. But they are a small minority in what is a popular uprising against a dictator. Their partial hijacking of the rebellion should not mean the West should not support it. It just means it has be more careful.
Al-Qaeda is not a "country".. And Osama bin Laden didn't personally plan and attack the towers either..
If you think there is no connection between the different branches of Al-Qaeda across the globe you're mistaken.. Did you see how quick the weapons that Al-Qaeda got in Libya appeared in Mali?
However, being there a connection doesn't necessarily mean that it's the same fighters jumping here and there (even though they do jump sometimes!). That's nonsense. Of course in each country there are separate cells, but they all collaborate with each other when they need to.
Just look how many foreign fighters got into Syria during the conflict..
And to be honest, the way you're trying to say: "This Al-Qaeda is not exactly the Al-Qaeda that attacked us on 9/11. It's not the same men..." That's nonsense to be honest, because the men that attacked the US on 9/11 already died in those planes, and it sounds extremely apologetic on your part in trying to find excuses for the awkward situation the US (and some European countries) finds itself in..
Stop fooling yourself, they're not only sharing the same ideology, they're just different branches of the same organization, be it in Syria, in Libya, in Yemen, in Mali, ...etc. And by the way, they definitely share the same targets as well, and that's why the West is worried that those American and European citizens who are fighting now in Syria will go back to Europe and the US and they might execute terrorist attacks for Al-Qaeda in Europe or the US in the future!
Also you're dead wrong about them being a minority in Syria (in term of military strength).. You're talking about what you hope for, not what's actually happening on the ground unfortunately..
And by the way, I'm surprised you're arguing about things like those, because those are things even the US administration admit now.