At home. My wife had just left to take the kids to school and I turned on the TV just in time to watch the plane hit the second tower. I sat glued to the TV the rest of the day. It was surreal. Very difficult to process. It was hard to imagine that there was not a single aircraft in the air anywhere over the U.S. Went to a class that evening, we just sat and watched the news footage. Absolutely unreal.
I was packing my suitcase to fly out to Toronto later that day for a business meeting. I had CNN on in the background and heard them talking about the first plane. Since I had a few hours before heading to the airport I sat down to watch the news. Then the second plane hit and I got really nervous. When the plane hit the Pentagon, I called my boss and told him there was no way I was getting on a plane that day. And then eventually, FAA closed down all flights. Spent the rest of the day watching in horror as all of the events unfolded. Changed my life forever, and unfortunately has left me with a different attitude about middle eastern people.