NORTH TOWER

On September 11, 2001, 343 members of the Fire Department of New York perished while trying to rescue people trapped in the World Trade Center. Scott Pelley speaks with firefighters who were there that day and the loved ones of those who never made it home.

On September 11, 2001, 343 members of the Fire Department of New York perished while trying to rescue people trapped in the World Trade Center. Scott Pelley speaks with firefighters who were there that day and the loved ones of those who never made it home.

In New York, the ceremony at Ground Zero began with the first moment of silence at 8:46 a.m. — the time Flight 11 struck the North Tower of the World Trade Center. The last moment of silence came at 10:28 a.m., in observance of the fall of the North Tower. The reading of the names of the victims, an annual tradition, went on for more than four hours, a reflection of the extraordinary toll from the worst terrorist attack in American history.

Survivors of the Islamic State attack on Paris the night of Nov. 13, 2015, and those who mourn the 130 dead, are hoping for justice in an extraordinary trial that’s begun this week. (Sept. 9)

When Sgt. Priscilla Rodriguez learns she will be home from deployment earlier than expected, she puts a plan in motion to surprise her whole family.

A decade ago Olivia Perez, Lauren Charette and An Nguyen wrote to their late fathers in a book called, "The Legacy Letters." Earlier this month they revisited their letters with CBS Mornings' co-anchor Gayle King.

How the devastating 2001 plane attacks on America unfolded and how they shaped our age.

9/11 cop reflects on surviving North Tower collapse After 34 years of service, retiring Lt. David Lim, one of 16 survivors of the North Tower collapse, shares his story with Don Dahler