Ten years ago, I was driving across town on an absolutely gorgeous clear September morning. I had left pretty early to get to my graphic design job, I knew there was a lot of work to do on this catalog I was designing. I had NPR on in the car, and news was really boring, to the point that I was literally thinking that they were really looking for material to fill out the hour of Morning Edition. A little later, after all hell broke loose, the catalog didn't seem to matter so much. I took a walk in the sunshine, thinking that you never know what's going to come out the clear blue sky.
Every generation has a few defining events, those things we can all say we remember where we were when we heard it. My mom talks about vacuuming when she heard about JFK, I'm sure I won't forget where I was when I heard about the planes.