Disclaimer: 'I have no hard feeling's for the victims and related people from 9/11'

Images: 9/11 - United in Memory
9/11: The child who lost his mother
Here's why Osama bin Laden's still free
Gandhian way to mark 9/11
The fallout from 9/11
With a heavy heart, America marks 9/11
5 years on, a world living in fear
Bush vows never to forget lessons of 9/11

These are only a few headlines from just two online news portals. just cant stop wondering what is it about this incidence that it is still as much alive as it was on that day 5 years back. I dont remember seeing more then one small coloum in a newspaper about the tsunami which happend 3 years back, I don't see any news on the day of when the London subway was blasted, I don't see so much Reminiscing about any other news as I have done about this. Not that what happened was small or easily forgetable but WHAT was it that is still so ALIVE?
Is it because it is like the single most devastating Terrorism act known in AMERICA by the outside world?
or because world's way of functioning has changed considerably after this?
or because it gave rise to World vs 'so called Islami Jehad'?

If people wud say it is because of the Loss of Humanity and Loss of relations, families, mothers, fathers, children, teachers... I dont think I ll beleive it.. as only people who are still greiving for that reason are the ones who have lost.

So what is it about?