What were you doing when you found out that the United States was under attack?

I listening to the radio on my way to work . At first I thought I was listening to a report of a fire that was happening in my hometown. Then I realized that the voice of the announcer belonged to Peter Jennings. He then said that the WTC had been hit by a plane. I thought it was an accident, shortly afterwards he said that the 2nd tower was hit. I realized that moment that we were under attack.