Your profile states Joined Sep 30, '01 so I think that would be 2001, not 2011.
I was thinking of the World Trade Center attack as a landmark in time - 9/11, 2001.
PS: Can it be that string and I joined within about ten days of each other right after the attack and neither of us recall that? That seems, well, improbable. Of course improbable things do happen, still…