PENTTBOM explained

PENTTBOM (sometimes referred to as PENTTBOMB[1]) is the codename for the Federal Bureau of Investigation's probe into the September 11 attacks of 2001, the largest criminal inquiry in the FBI's history. Its name stands for "Pentagon/Twin Towers Bombing Investigation". The investigation was launched on September 11, 2001, and involved 4,000 special agents and 3,000 professional employees.[2] [3]

Identifying the hijackers

The FBI was able to identify the 19 hijackers within a matter of days as few suspects made any effort to conceal their names on flight, credit card, and other records.[4]

Identical letters

Three of the hijackers carried copies of an identical handwritten letter[5] (in Arabic) that was found in three separate locations: the first, in a suitcase of hijacker Mohamed Atta that did not make the connection to American Airlines Flight 11 that crashed into the North Tower of the World Trade Center; the second, in a vehicle parked at Washington Dulles International Airport that belonged to hijacker Nawaf al-Hazmi; and the third at the crash site of United Airlines Flight 93 in Shanksville, Pennsylvania.

According to the testimony before the House Intelligence Subcommittee on Terrorism and Homeland Defense on October 3, 2001, given by J. T. Caruso, the Deputy Assistant Director of the FBI's Counterterrorism Division, "translations of the letter indicate an alarming willingness to die on the part of the hijackers."[6]

Passports recovered

According to testimony by Susan Ginsberg, a staff member of the National Commission on Terrorist attacks upon the United States, in the January 26, 2004, Public Hearing:[7]

Four of the hijackers' passports have survived in whole or in part. Two were recovered from the crash site of United Airlines flight 93 in Pennsylvania. These are the passports of Ziad Jarrah and Saeed al Ghamdi. One belonged to a hijacker on American Airlines flight 11. This is the passport of Satam al Suqami. A passerby picked it up and gave it to a NYPD detective shortly before the World Trade Center towers collapsed. A fourth passport was recovered from luggage that did not make it from a Portland flight to Boston on to the connecting flight which was American Airlines Flight 11. This is the passport of Abdulaziz al-Omari.

In addition to these four, some digital copies of the hijackers passports were recovered in post-9/11 operations. Two of the passports that have survived, those of Satam al-Suqami and Abdulaziz al-Omari, were clearly doctored. These passports were manipulated in a fraudulent manner in ways that have been associated with al Qaeda.

WTC site

The passport of hijacker Satam al-Suqami was found a few blocks from the World Trade Center.[8] [9]

Flight 93

According to the 9/11 Commission, the passports of two of the Flight 93 hijackers were also found intact in the aircraft's debris field.[10]

Atta's luggage

The doctored passport of hijacker Abdulaziz al-Omari was found in Mohamed Atta's left-behind luggage.[10]

When examining Mohamed Atta's luggage, the FBI found important clues about the hijackers and their plans. His luggage contained papers that revealed the identity of all 19 hijackers, and provided information about their plans, motives, and backgrounds.[11] The FBI was able to determine details such as dates of birth, known and/or possible residences, visa statuses, and specific identities of the suspected pilots. None of these documents have been scrutinized by independent legal experts.[12]

Recovery of remains

Linking the hijackers to al-Qaeda

The investigators were quickly able to link the 19 men to the terrorist organization al-Qaeda, by accessing their intelligence agency files. The New York Times reported on September 12 that: "Authorities said they had also identified accomplices in several cities who had helped plan and execute Tuesday's attacks. Officials said they knew who these people were and important biographical details about many of them. They prepared biographies of each identified member of the hijack teams, and began tracing the recent movements of the men." FBI agents in Florida investigating the hijackers quickly "descended on flight schools, neighborhoods and restaurants in pursuit of leads." At one flight school, "students said investigators were there within hours of Tuesday's attacks."[13] The Washington Post later reported that "In the hours after Tuesday's bombings, investigators searched their files on [Satam] Al Suqami and [Ahmed] Alghamdi, noted the pair's ties to [Nabil] al-Marabh and launched a hunt for him."[14]

On September 27, 2001, the FBI released photos of the 19 hijackers, along with information about the possible nationalities and aliases of many.

On the day of the attacks, U.S. intelligence agencies also intercepted communications that pointed to Osama bin Laden.[15] It was quickly asserted that Osama bin Laden was responsible for the attacks, and other suspects were ruled out. Although he denied the attacks at first, Osama bin Laden later admitted full and sole responsibility for the attacks in a video tape.[16]

Press releases

See also

External links

Notes and References

  1. Web site: Federal Bureau of Investigation Casework and Human Resource Allocation . 21 November 2023.
  2. Web site: 9/11 Investigation (PENTTBOM). Famous Cases & Criminals. Federal Bureau of Investigation. 26 March 2014.
  3. Web site: The FBI's 9/11 Role by the Numbers. Ten Years After: The FBI Since 9/11. Federal Bureau of Investigation. 26 March 2014.
  4. Web site: Federal Bureau of Investigation - Facts and Figures 2003. Federal Bureau of Investigation. 2011-09-11. https://web.archive.org/web/20100409083045/http://www.fbi.gov/libref/factsfigure/counterterrorism.htm. 2010-04-09. live.
  5. News: Last words of a terrorist. 11 September 2011. The Observer. 30 September 2001. https://web.archive.org/web/20130825155640/http://www.theguardian.com/world/2001/sep/30/terrorism.september113. 2013-08-25. live.
  6. Web site: Federal Bureau of Investigation - Congressional Testimony. FBI. 11 September 2011. 3 October 2001.
  7. Web site: National Commission on Terrorist Attacks Upon the United States . govinfo.library.unt.edu . 13 April 2022.
  8. News: Suspected hijacker's passport found . 11 September 2011 . Arizona Daily Star . 16 September 2001 . Larry Neumeister . The Associated Press . dead . https://web.archive.org/web/20020209185830/http://www.azstarnet.com/attack/10916Nrescues.html . February 9, 2002 .
  9. News: Passport of suspected hijacker found in debris. 11 September 2011. Las Vegas Review-Journal. 16 September 2001. Larry Neumeister. The Associated Press. https://web.archive.org/web/20110831113319/http://www.reviewjournal.com/lvrj_home/2001/Sep-16-Sun-2001/news/17011253.html. 2011-08-31. live.
  10. Web site: Seventh public hearing of the National Commission on Terrorist Attacks Upon the United States. The National Commission on Terrorist Attacks Upon the United States. 26 January 2004. 2008-02-07. https://web.archive.org/web/20080407031735/http://www.9-11commission.gov/archive/hearing7/9-11Commission_Hearing_2004-01-26.htm. 2008-04-07. live.
  11. News: Unraveling 9-11 was in the bags . Newsday (New York) . April 17, 2006 . Dorman, Michael . 2008-02-07 . https://web.archive.org/web/20080526011027/http://www.newsday.com/news/nationworld/nation/ny-uslugg274705186apr17,0,6096142.story?coll=ny-nationalnews-print . 2008-05-26 . live .
  12. News: The Case Against Zacarias Moussaoui. Reaves. Jessica. Time. January 2, 2002. 2008-02-07. https://web.archive.org/web/20080307144721/http://www.time.com/time/world/article/0,8599,190413,00.html. 2008-03-07. dead.
  13. News: After the attacks: The suspects; Hijacking Trail Leads F.B.I. to Florida Flight School . The New York Times . Dana . Canedy . David E. . Sanger . September 13, 2001 . May 22, 2010 . https://web.archive.org/web/20080615233149/http://query.nytimes.com/gst/fullpage.html?res=9805E6DC1038F930A2575AC0A9679C8B63 . 2008-06-15 . live .
  14. News: FBI Arrests Kuwaiti Liquor Store Clerk . 11 September 2011. The Washington Post. 21 September 2001. John Mintz. Allan Lengel.
  15. News: Latest on the attacks on America, 7:00 p.m . . September 11, 2001.
  16. Web site: Bin Laden "Confession" Video. YouTube. 16 February 2008. 2016-07-28. https://web.archive.org/web/20161129163411/https://www.youtube.com/watch?v=KhctMpvszqQ. 2016-11-29. live.
  17. Web site: Information Regarding September 11 Incidents. FBI. 11 September 2011. 11 September 2001. https://web.archive.org/web/20111109233803/http://www.fbi.gov/news/pressrel/press-releases/information-regarding-september-11-incidents. 2011-11-09. live.
  18. Web site: FBI Announces List of 19 Hijackers. FBI. 11 September 2011. 13 September 2001. https://web.archive.org/web/20111025020344/http://www.fbi.gov/news/pressrel/press-releases/fbi-announces-list-of-19-hijackers. 2011-10-25. live.
  19. Web site: The FBI Releases 19 Photographs of Individuals Believed to be the Hijackers of the Four Airliners that Crashed on September 11, 2001. FBI. 11 September 2011. 11 September 2001. https://web.archive.org/web/20111007052033/http://www.fbi.gov/news/pressrel/press-releases/the-fbi-releases-19-photographs-of-individuals-believed-to-be-the-hijackers. 2011-10-07. live.
  20. Web site: FBI Releases Copy of Four-Page Letter Linked to Hijackers. FBI. 11 September 2011. 28 September 2001. https://web.archive.org/web/20111109173537/http://www.fbi.gov/news/pressrel/press-releases/fbi-releases-copy-of-four-page-letter-linked-to-hijackers. 2011-11-09. live.
  21. Web site: Boston Division Seeks Assistance. FBI. 11 September 2011. 4 October 2001. https://web.archive.org/web/20111103080730/http://www.fbi.gov/news/pressrel/press-releases/boston-division-seeks-assistance. 2011-11-03. live.

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