National security after 9/11: What's changed?

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President Biden honors 9/11 victims 21 years after attacks
05:36
Younger generations feel disconnected from 9/11
02:36
The U.S. marks 21 years since 9/11
06:15
The U.S. faces a new type of threat 21 years after the 9/11 attacks
06:28
‘We will not rest, we will never forget:’ Biden commemorates 21st anniversary of 9/11 attacks
01:22
'In the hunt for al-Zawahri, I lost friends; I helped bury them'
08:58
U.S. kills al-Qaeda leader
09:41
Afghanistan’s frozen assets could go to 9/11 victims
08:15
Trump lies about 9/11 again
05:28
President Bush calls for a united America during Sept. 11 speech
07:34
NYC resident recalls sad, frustrating times in Chinatown after 9/11 attack
02:49
Maria Teresa Kumar: the attack on voting rights is an orchestrated operation
04:38
American unity saved our country after 9/11. America needs saving again.
03:33
Michael Moore on Bush administration, government distrust: 'Belief in the unreal began after 9/11'
08:58
The pilot whose diverted plane on 9/11 inspired a Tony Award-winning musical shares her story
06:00
Leon Panetta: U.S. needs to be prepared to deal with both foreign and domestic terrorism
08:38
Mike Piazza’s post-9/11 home run remains memorable to New York City 20 years later
07:16
'It's time to pull together': Former NYC Mayor Mike Bloomberg stresses optimism, reflects on 9/11
06:29
Beverly Bass, captain depicted in musical 'Come From Away,' discusses her experience on 9/11
06:01
20 years after 9/11, Secy. of Defense Austin discusses protecting America from terrorism
07:17

UP NEXT
President Biden honors 9/11 victims 21 years after attacks
05:36
Younger generations feel disconnected from 9/11
02:36
The U.S. marks 21 years since 9/11
06:15
The U.S. faces a new type of threat 21 years after the 9/11 attacks
06:28
‘We will not rest, we will never forget:’ Biden commemorates 21st anniversary of 9/11 attacks
01:22
'In the hunt for al-Zawahri, I lost friends; I helped bury them'
08:58