There is nothing I could say that countless other people haven't already said.
I will add my thoughts and prayers to all the families that have been touched by that horrific day. I will pray for my country. I will pray for the troops that are fighting. I will pray for their safety, and their swift return home. I will pray for the mothers and fathers that lost a child. For the children that lost thier mother or their father. For the brothers and sisters that lost a sibling. For everyone that lost a friend. And for all the rest of us, that in some way lost our innocence.