Tunnel to Towers: Brother of firefighter who died on 9/11 made helping others his mission

Stephen Siller lost his life on 9/11 as he helped people escape the World Trade Center before it collapsed. His brother, Frank, started “Tunnel to Towers,” a foundation aimed at helping other military and first responders’ families.

Remembering Ronald Bucca, 'The Flying Fireman' | 9/11: 20 Years Later

To understand just how Fire Marshal Ronald Bucca ended up inside the south tower of the World Trade Center on the morning of Sept. 11, 2001, one must understand what happened to him in the line of duty in 1986.

Most Americans over 30 remember where they were on 9/11, survey says

“Nothing can capture the feeling I had walking out of Carlyle on Union Square and seeing the first tower smoking,” Michael Roth told New York University.

9/11: Over 20 years, public opinion on wars, terrorism shifted, Pew says

Research compiled by the Pew Research Center shows that in the decades since 9/11, Americans’ outlooks on wars, politics and terrorism have dramatically shifted.

2 more 9/11 victims identified this week

New York City's medical examiner's office is continuing the difficult task of identifying remains recovered from the rubble of the World Trade Center.

Dogs of 9/11: Heroic canines combed debris, offered comfort

Thousands of firefighters and emergency medical personnel responded to Ground Zero, including more than 300 specialized canine search and rescue teams.

9/11 attack prompted more security, less privacy for travelers

Ask anyone old enough to remember travel before Sept. 11, 2001, and you're likely to get a gauzy recollection of what flying was like.

Biden to visit 9/11 memorial sites to mark 20th anniversary of attacks

Biden will visit ground zero in New York City, the Pentagon and the memorial outside Shanksville, Pennsylvania, where United Flight 93 was forced down, the White House said Saturday.

Afghanistan and the Taliban: From 9/11 to today

Twenty years ago, Taliban-led Afghanistan fell to a U.S.-led coalition in the months after the Sept. 11 attacks. For Afghans, that means 20 years of change in an arc that's run from early hope to despair.

Surviving 9/11 was 'just the first piece of the journey'

Twenty years later, Sept. 11 survivors bear scars and the weight of unanswerable questions. Some grapple with their place in a tragedy defined by an enormous loss of life. They get told to “get over” 9/11. But they also say they have gained resilience, purpose, appreciation and resolve.

Biden signs executive order to declassify some 9/11 documents

President Joe Biden has signed an executive order directing the FBI to declassify documents related to the Sept. 11, 2001, terrorist attacks.

9/11 first responders to be celebrated in Fort Worth

The city of Fort Worth will honor 9/11 first responders nearly 20 years after the attack in New York.

Trump and Biden to both visit Shanksville for 9/11 anniversary

It was not immediately clear whether their visits to the memorial will overlap. But it probably will be the closest that the candidates have been to one another in months.

Florida man spots 'firefighter running toward angel' in clouds on September 11

A photo taken on the 18th anniversary of the Sept. 11 terror attacks appears to show clouds shaped like a firefighter running toward an angel.