“Bin Laden Dead -- Where Are Other 9/11 Planners?”. ABC News (2011年5月2日). 2019年2月2日閲覧。 “While initially denying responsibility for the 9/11 attacks, Bin Laden took responsibility for them in a 2004 taped statement, saying that he had personally directed the hijackers.”
"The ruling to kill the Americans and their allies – civilians and military – is an individual duty for every Muslim who can do it in any country in which it is possible to do it, in order to liberate the al-Aqsa Mosque and the holy mosque [Mecca] from their grip, and in order for their armies to move out of all the lands of Islam, defeated and unable to threaten any Muslim." Quoted from “Al Qaeda's Second Fatwa”. PBS NewsHour. Public Broadcasting Service. 2013年11月28日時点のオリジナルよりアーカイブ。2014年5月29日閲覧。
“We left out nuclear targets, for now”. The Guardian (London). (2003年3月4日). オリジナルの2008年1月23日時点におけるアーカイブ。. https://web.archive.org/web/20080123195032/http://www.guardian.co.uk/international/story/0%2C3604%2C906911%2C00.html2011年9月3日閲覧. "Yosri Fouda of the Arabic television channel al-Jazeera is the only journalist to have interviewed Khalid Sheikh Mohammed, the al-Qaeda military commander arrested at the weekend. Here he describes the two-day encounter with him and his fellow organiser of September 11, Ramzi bin al- Shibh: ... Summoning every thread of experience and courage, I looked Khalid in the eye and asked: 'Did you do it?' The reference to September 11 was implicit. Khalid responded with little fanfare: 'I am the head of the al-Qaeda military committee,' he began, 'and Ramzi is the coordinator of the Holy Tuesday operation. And yes, we did it.'"
"The ruling to kill the Americans and their allies – civilians and military – is an individual duty for every Muslim who can do it in any country in which it is possible to do it, in order to liberate the al-Aqsa Mosque and the holy mosque [Mecca] from their grip, and in order for their armies to move out of all the lands of Islam, defeated and unable to threaten any Muslim." Quoted from “Al Qaeda's Second Fatwa”. PBS NewsHour. Public Broadcasting Service. 2013年11月28日時点のオリジナルよりアーカイブ。2014年5月29日閲覧。
“We left out nuclear targets, for now”. The Guardian (London). (2003年3月4日). オリジナルの2008年1月23日時点におけるアーカイブ。. https://web.archive.org/web/20080123195032/http://www.guardian.co.uk/international/story/0%2C3604%2C906911%2C00.html2011年9月3日閲覧. "Yosri Fouda of the Arabic television channel al-Jazeera is the only journalist to have interviewed Khalid Sheikh Mohammed, the al-Qaeda military commander arrested at the weekend. Here he describes the two-day encounter with him and his fellow organiser of September 11, Ramzi bin al- Shibh: ... Summoning every thread of experience and courage, I looked Khalid in the eye and asked: 'Did you do it?' The reference to September 11 was implicit. Khalid responded with little fanfare: 'I am the head of the al-Qaeda military committee,' he began, 'and Ramzi is the coordinator of the Holy Tuesday operation. And yes, we did it.'"
犠牲者1700人の宗教についての調査で、全体の内の約10%がユダヤ教徒であったことが示されている。また犠牲者の姓を調査した結果、約400人 (およそ15%) がユダヤ人である可能性があることが判明した。犠牲となったキャンター・フィッツジェラルド（英語版）社の従業員658人のうち、公共の慰霊碑に名前があった390人を調査した結果、その中の49人 (およそ13%) がユダヤ人であったことが判明した。2002 American Jewish Year Bookによると、ニューヨーク州の人口のうち9%がユダヤ人であった。またWTCの犠牲者のうち64%がニューヨーク州在住の人物であった。
