He isn't even wanted for 9/11.
http://www.fbi.gov/wanted/terrorists/terbinladen.htm
He was never charged for it due to a lack of evidence that he was involved.
"When asked why there is no mention of 9/11 on the FBI's web page, Rex Tomb, the FBI's Chief of Investigative Publicity, is reported to have said, 'The reason why 9/11 is not mentioned on Usama Bin Laden's Most Wanted page is because the FBI has no hard evidence connecting Bin Laden to 9/11.'"
http://www.twf.org/News/Y2006/0608-BinLaden.html