Here are some of the people whose stories were told on CBS News Sunday Morning:
Dennis O'Berg keeps coming back to the site every day, shovel in hand. He comes to be near his fire-fighting son, also named Dennis, missing, somewhere in the rubble.
Nikki Stern lost her husband, Jim Potorti, that day. Now, she volunteers for countless committees on how best to remember the dead.
Baraheen Ashrafi lost her husband, too: Mohhamed Chowdhury. Their son was born almost exactly 48 hours after his father was killed.
And then there is Vasana Moututanont, who had burns over 60 percent of her body.
Going home from the hospital was hard. Living at home is proving just as tough.