Watch: Moments from ceremonies marking 21 years since 9/11 attacks
02:24
FBI releases declassified document into links between Saudi Arabia and 9/11 hijackers
04:38
As US remembers 9/11, Taliban tightens its grip on Afghanistan
03:46
Watch: Divers install American flag underwater to commemorate 9/11
01:24
Watch: Biden, Harris take part in wreath-laying ceremony at Pentagon
03:28
Welsh Guards soldiers perform U.S. national anthem in British memorial to 9/11
01:21
Investment banking firm’s foundation pays college tuition for children of those lost on 9/11
02:33
Watch: Emotional moments from 9/11 20th anniversary ceremonies
03:20
Bells toll, names read at Shanksville 9/11 ceremony to mark Flight 93 crash
02:38
‘Taps’ performed at Pentagon ceremony following moment of silence
01:08
Full speech: Pres. Bush delivers remarks at Shanksville 9/11 ceremony on 20th anniversary
09:10
‘Unity is possible in America’: Harris honors 9/11 anniversary
08:18
Moment of silence marking when United Flight 175 struck south tower
01:07
9/11 20th anniversary: Procession and moment of silence held at time north tower was struck
01:46- Now Playing
Full Special: ‘America Remembers 9/11: 20 Years Later’
01:45:17 - UP NEXT
‘It’s about each individual life’: Former N.Y. Gov. Pataki recalls 9/11
04:08 
Where the threat of terrorism stands 20 years after 9/11
03:24
NBC News journalists remember covering 9/11 attacks
04:31
9/11 families sue Saudi Arabia government for alleged complicity in attacks
04:55
Meet the FDNY firefighters who served in Air Force together after 9/11
06:06
Full Special: ‘America Remembers 9/11: 20 Years Later’
01:45:17
Twenty years ago, America came under attack. Thousands of lives were lost, and the nation was forever changed. In commemoration of the 20th anniversary of 9/11, NBC News NOW is going in depth with comprehensive special coverage. We'll hear heart-breaking stories from first responders, and survivors, emotional reaction from families who lost loved ones, and how the victims of that fateful day are still being remembered.Sept. 10, 2021
- UP NEXT
Watch: Moments from ceremonies marking 21 years since 9/11 attacks
02:24 FBI releases declassified document into links between Saudi Arabia and 9/11 hijackers
04:38As US remembers 9/11, Taliban tightens its grip on Afghanistan
03:46Watch: Divers install American flag underwater to commemorate 9/11
01:24Watch: Biden, Harris take part in wreath-laying ceremony at Pentagon
03:28Welsh Guards soldiers perform U.S. national anthem in British memorial to 9/11
01:21
