9/11 will forever live in the memories of Americans, and those around the world. But for those who either survived the attacks on the World Trade Center or lost loved ones in the collapse of the Twin Towers, the day was a life-changing event. Click the link below to listen now as they recount their stories: the impact of that day on their lives, and the messages and signs some received—and continue to receive—12 years after the most deadly attack on the U.S.