1) Those people (tourists, business people&workers) who were in the Word Trade Center and lost their lives that day because of th acts of deranged men.
2) Every single person, whether law enforcement, fire crew, paramedic or citizen, who lost their life that day trying to help someone else whilst chaos ensued around them.
3) All the people who, though they survived that day, had their lives changed forever. Those people who lost someone or were hurt (physically or mentally) that day, those people who have carried their first hand experience of what happened that day with them since and who will continue to do so for the rest of their life.
4) Everyone who's life has been changed directly because of that day. Amongst these people is every soldier that has lost their life fighting in the conflicts that have come about as a result of that day.
This final group contains every single one of us. The ripple effect of that day has been felt by everyone across the world in one way or another. The governmental policies that play on the fear inspired by that day have effected us all and will continue to do so.
I have no political axe to grind here nor religious dogma to preach.
I simple want to pay my respects to all effected that day.