I understand why the Americans would like to commemorate the tragic events of 9/11/2001.
Here in Europe I thought by myself: "Yes, it is a tragedy and ofcourse I would like to see some news coverage, but aren't they taking it too far". But I couldn't stop myself from watching a few documentaries and seeing some of the images brought it all back to me. Yes, this should be remembered for many years, as it is a blatant attck from fundamentalists who preach peace but go out killing to get attention.
I wish lots of strength for anyone dealing with the aftermath, even after all those years

On a sidenote:
On the iPad I have installed an app which tells the story of a some of the (professional) photographers, how they experienced the day, what went through their mind. Ofcourse there are some shocking pictures included in the app. It seems like a paradox to look at the pics and be shocked about what you see and at the same time admire them for their beauty, their composition. It really is worth checking out to get a better understanding of the tragedy and on me, the stills have more impact than the video's shot on that day.
Not wanting to make it sound like an advertisement (if needed, please moderate this) - but the app is free and really touching.