WASHINGTON — Former CIA Director George Tenet did not use all of his available powers and the U.S. spy community lacked a comprehensive plan to stop al-Qaida in the run-up to the Sept. 11 terror attacks, the agency's internal watchdog concluded in a report released Tuesday.

Completed in June 2005 and kept classified until now, the 19-page executive summary finds extensive fault with the actions of senior CIA leaders and others beneath them. "The agency and its officers did not discharge their responsibilities in a satisfactory manner," the CIA inspector general found.

"They did not always work effectively and cooperatively," the report stated.

Yet the review team led by Inspector General John Helgerson found neither a "single point of failure nor a silver bullet" that would have stopped the attacks that killed nearly 3,000 people.

In a statement, CIA Director Michael Hayden said the decision to release the report was not his choice or preference, but that he was making the report available as required by Congress in a law signed by President Bush earlier this month.

"I thought the release of this report would distract officers serving their country on the front lines of a global conflict," Hayden said. "It will, at a minimum, consume time and attention revisiting ground that is already well plowed."