"If you look at what the European countries have done, our effort looks fairly meager. I would be on the side of those that think we should do more," he said.
Visa security loophole exploited by 9/11 attackers still open 15 years later →
Kean and Hamilton said the 28 pages were based almost entirely on raw, unvetted material that came to the FBI.
Secret chapter of 9/11 inquiry released after 13-year wait →