Yes Sunday will be a bad day for many. The memory will never fade. I remember I was in a late meeting at work and as I drove out of my offices parking lot my husband phoned to tell me. When I walked into our home my family was literally faces against the TV and I remember the fear and shock - I thought the next world war was about to start. Guess it did just in another way.
At the time I worked in secure comms and many of our clients were based in the Towers. Such a sad day.