Summary

Substitution for the Testimony of Khalid Sheikh Mohammed

Sheikh Mohammed said that operationally it was not smart to share with others your tactics or intended targets: When four people know the details of an operation, it is dangerous; when two people know, it is good; when just one person knows, it is better. Sheikh Mohammed gave as an example, the obvious operational benefit of Moussaoui ['s] ignorance concerning the ultimate target of, or others potentially involved in, his mission.
Source: Wikisource

Substitution for the Testimony of Khalid Sheikh Mohammed

Sheikh Mohammed traveled to Afghanistan in 1996 to convince Bin Laden to give him money and operatives so that he could hijack 10 planes in the U.S. to fly them into targets, with five targets on each coast of the United States. Bin Laden was not convinced of the practicality of the operation, but in either March or April 1999, Bin Laden changed his mind, and summoned Sheikh Mohammed to meet him in Qandahar, Afghanistan. Bin Laden told Sheikh Mohammed that he now thought the idea could work, and informed him that the operation now had al Qaeda's full support.
Source: Wikisource

Substitution for the Testimony of Khalid Sheikh Mohammed

Nawaf al-Hazmi and Khalid al-Mihdhar, who were the first members chosen to participate in the operation, learned the planned method of attack in October or November 1999 when Bin Laden told them to travel to the U.S. and study to become pilots. The Hamburg cell, Atta, al-Shehhi, Jarrah, and Bin al-Shibh, learned the details of the method of attack and the planned targets when they were chosen to be pilots in late 1999 or early 2000. Similarly, Hani Hanjour was informed of all these details when he was chosen as a pilot.
Source: Wikisource

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