Firefighters tell their stories of loss on 9/11, the rise of the Freedom Tower

In the year following 9/11, Ted Koppel interviewed four firefighters who were on top of the rubble of the World Trade Center, all of whom lost their sons after 9/11. We spoke with those four firefighters again in 2010 as they continued to honor their sons' legacies. This week, Nightline is remembering those brave men as the nation pays tribute.

September 13, 2019