WASHINGTON — In highly unusual testimony inside the federal supermax prison, a former operative for Al Qaeda has described prominent members of Saudi Arabia’s royal family as major donors to the terrorist network in the late 1990s and claimed that he discussed a plan to shoot down Air Force One with a Stinger missile with a staff member at the Saudi Embassy in Washington.
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He said in the prison deposition that he was directed in 1998 or 1999 by Qaeda leaders in Afghanistan to create a digital database of donors to the group. Among those he said he recalled listing in the database were Prince Turki al-Faisal, then the Saudi intelligence chief; Prince Bandar Bin Sultan, the longtime Saudi ambassador to the United States; Prince al-Waleed bin Talal, a prominent billionaire investor; and many of the country’s leading clerics.
“Sheikh Osama wanted to keep a record who give money,” he said in imperfect English — “who is to be listened to or who contributed to the jihad.”
Mr. Moussaoui said he acted as a courier for Bin Laden, carrying personal messages to prominent Saudi princes and clerics. And he described his training in Qaeda camps in Afghanistan.
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In addition, Mr. Moussaoui said, “We talk about the feasibility of shooting Air Force One.”
Specifically, he said, he had met an official of the Islamic Affairs Department of the Saudi Embassy in Washington when the Saudi official visited Kandahar. “I was supposed to go to Washington and go with him” to “find a location where it may be suitable to launch a Stinger attack and then, after, be able to escape,” he said.