In operations doing load planning / weight & balance for an airline.
Actually ran up into the concourse to grab some breakfast and the news was showing a replay of some kind of plane hitting one of the towers.
(Underneath the concourse at the time, later moved to a secondary tower)
I didnt look like a big plane to me at that moment, and I think they were even speculating on the news that it was some private pilot gone astray.
So I run back down to operations, and tell everybody 'some guy just rammed his plane into one of the skyscrapers in new york, its on t.v. right now.'
I run back up to the concourse to check out the t.v. again and I'm standing there gawking and listening to them speculate.
Then I see something else hit the other tower at high rate of speed.
So... ran back down to ops, and said "The sh*t is about to officially hit the fan. Turn on the radio." (a.m. radio)
And shortly thereafter, all hell broke loose.
FAA gives the word out to ground all planes.
We had planes landing wherever they could, all over the country and even canada.
Just, find a airstrip and get it down now, wherever they happened to be.
Approximately 2 hours after that they shut Denver International down, and everyone except a skeleton crew had to leave. (Was 'evacuated')
I had some lady flight attendant that Id never seen before clutching on to me as everyone was making the exodus out, wanting me to promise her that Id get her out safely.
Id say a fair number of people that knew what was going on, got a little panicky.
So yah... I wasnt in NYC, but that tragedy affected me in my own personal way.
Middle of a sh*t storm and all that.
And yes, this is a "late to the party post", but I havent been active much for awhile here.