Eleven years later, I remember September 11, 2001.

I remember being in a morning meeting and one of the staff members was late. When he came in, he asked if we had heard the news about a plane crashing into the World Trade Center. We hadn't. We finished our meeting, then went upstairs to the lunch room (with its huge projection television) and saw that the news channels still weren't sure if this was an accident or some sort of attack.

Shortly after that, we watched in horror as another plan crashed into the second tower. Then it was clear that this was no accident.

A very sad, unsettling day.