"Following the Sept. 11, 2001, attacks, the bank also set off an intense debate within the U.S. government over whether to take strong action against its alleged role in extremist finance. Confidential reports by the Central Intelligence Agency and other U.S. agencies, reviewed by The Wall Street Journal, detail for the first time how much the U.S. learned about the use of Al Rajhi Bank by alleged extremists, and how U.S. officials agonized over what to do about it." (thanks G.)