In my 2010 short story ‘Prepositions’, a woman has lost her husband not in 9/11 but on 9/11 — when coming to the aid of a family whose distress had nothing to do with the World Trade Center. Composed as a letter to a friend whose husband did indeed perish in the Twin Towers, the narrator expresses her dismay at being left to a lonely, private grief, while her friend’s loss is heralded in grand ceremonies in lower Manhattan every year.