Former US President George W. Bush speaks during a 9/11 commemoration at the Flight 93 National Memorial in Shanksville, Pennsylvania on September 11, 2021. - America marked the 20th anniversary of 9/11 Saturday with solemn ceremonies given added poignancy by the recent chaotic withdrawal of troops from Afghanistan and return to power of the Taliban. (Photo by MANDEL NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images)
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Bush: The sense of unity seen in the US after 9/11 seems distant
Former President George W. Bush, who was in office when the September 11th terror attacks occurred, delivered a message of unity to mark the 20th anniversary of 9/11.
09:07 - Source: CNN
Remembering 9/11 16 videos
Former US President George W. Bush speaks during a 9/11 commemoration at the Flight 93 National Memorial in Shanksville, Pennsylvania on September 11, 2021. - America marked the 20th anniversary of 9/11 Saturday with solemn ceremonies given added poignancy by the recent chaotic withdrawal of troops from Afghanistan and return to power of the Taliban. (Photo by MANDEL NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images)
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Bush: The sense of unity seen in the US after 9/11 seems distant
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Former US President George W. Bush speaks during a 9/11 commemoration at the Flight 93 National Memorial in Shanksville, Pennsylvania on September 11, 2021. - America marked the 20th anniversary of 9/11 Saturday with solemn ceremonies given added poignancy by the recent chaotic withdrawal of troops from Afghanistan and return to power of the Taliban. (Photo by MANDEL NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images)
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Bush compares domestic violent extremists to 9/11 terrorists
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NEW YORK, NEW YORK - SEPTEMBER 11: (L-R) Former President Bill Clinton, former First Lady Hillary Clinton, former President Barack Obama, former First Lady Michelle Obama, President Joe Bien, First Lady Jill Biden, former New York City Mayor Michael Bloomberg, Bloomberg's partner Diana Taylor and Speaker of the House Nancy Pelosi (D-CA) participate in a moment of silence during the annual 9/11 Commemoration Ceremony at the National 9/11 Memorial and Museum on September 11, 2021 in New York City. During the ceremony six moments of silence were held, marking when each of the World Trade Center towers was struck and fell and the times corresponding to the attack on the Pentagon and the crash of Flight 93. The nation is marking the 20th anniversary of the terror attacks of September 11, 2001, when the terrorist group al-Qaeda flew hijacked airplanes into the World Trade Center, Shanksville, PA and the Pentagon, killing nearly 3,000 people. (Photo by Chip Somodevilla/Getty Images)
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Biden and Obama observe September 11th moment of silence
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Ticket agent who checked in terrorists reflects on 9/11
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'I see a plane': Widow recounts last phone call with her husband on 9/11
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Lieutenant describes being inside Pentagon day care during 9/11 attack
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Watch: CNN was covering these stories just before the 9/11 attack
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Luis Alvarez, who is about to start his 69th round of chemo on June 12, testifies at a hearing on the 9-11 Victims fund before the Judiciary subcommittee on Capitol Hill in Washington D.C. on June 11, 2019. Credit: Stefani Reynolds / CNP | usage worldwide Photo by: Stefani Reynolds/picture-alliance/dpa/AP Images
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NYPD detective dies at 53 from cancer linked to 9/11 work
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Thomas Phelan passed on Friday. His passing was the result of a cancer he developed from his service on 9/11.
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9/11 hero who saved hundreds dies of cancer
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A 9/11 wedding tale
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Last 9/11 rescue dog laid to rest
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9/11 Memorial Museum dedication
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The slurry Wall, part of the World Trade Center's original foundation, is seen during a media tour of the National September 11 Memorial and Museum, Friday, Sept. 6, 2013 in New York. Construction is racing ahead inside the museum as the 12th anniversary of the Sept. 11, 2001 attacks draws near. Several more large artifacts have been installed in the cavernous space below the World Trade Center memorial plaza.
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Look back at how September 11 unfolded
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Amid the 9/11 flames, he chose to help
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