Edited sentence: Above is the commonly accepted folklore version of events.As Al-Quaeda is already pulled into this article, it must be mentioned that there remain many open questions.End Note.It is also highly controversial why the previously attacked World Trade Center was selected by Mayor Giuliani as the site for the main emergency command center, which lead to the breakdown of the entire system as described above, as the command center was obviously affected when the towers were struck.Special Note to above:.There remain many who do not face these questions, and a previous edit of this article was deleted almost immediately.What was the background and real relationship to the US government, oil industry, and Al-Quaeda, of the 15 Saudi Individuals out of the 19 alleged terrorists.What was the true nature of the historically unusual organization of the North American flight control systems under direct command of the vice president that very day