Some in the intelligence community have questioned whether Mohammed and other detainees may be feeding the Americans disinformation. But the CIA, sources say, has been able to corroborate much of what Mohammed has said. Their source: Majid Khan, who was recently detained by Pakistani authorities. At one point, the attacks were planned to occur on 9-11. But Osama bin Laden personally nixed the idea, U.S. intelligence sources told NEWSWEEK.