Exiled al Qaida leader Osama bin Laden is seen in this April 1998 picture in Afghanistan. American officials said they are looking at Bin Laden for involvement in the Friday, Aug. 7, 1998 Kenyan and Tanzanian U.S. embassy explosions. He has threatened a holy war against U.S. troops and Americans, and is suspected of backing other terrorist acts, including the 1996 attack in Saudi Arabia. (AP Photo)