That is truly a chilling picture, and I wish I didn't see that this late at night.
I actually saw it happen. I was in class n outside the window, I saw a blur fly towards a building, and just a whole bunch of smoke.
At first, I honestly thought it was a movie and was like

"That's a cool effect!". but then I noticed a whole panic around me, and realized something was very wrong. They cancelled all classes after that, and even though I was in Brooklyn, there was still a panic around me from people trying to get to phones to contact family members and seeing what was going on.
That day, 2 things stuck to my head: the smoke coming from the crash just hanging over the air, never moving, and the static from the TV when I got home as I tried flipping through channels to see if there was any information. I overheard somewhere that it was the Twin Towers that got hit, but the scary part was not knowing what the hell that blur I saw in the sky was was until much later and if it would happen again.
My heart goes out to all those souls in Ground Zero, and everyone who managed to survive the attack.