FILE - This Sunday, July 28, 1996, file photo shows Centennial Park at the 1996 Olympic Games in Atlanta, the day after an explosion centered at the bottom of the temporary tower, in the foreground. (AP Photo/John Gaps III, File)

FILE - In this July 27, 1996, file photo, Bronze medalist Ato Boldon of Trinidad and Tobago, left, gold medalist Donovan Bailey of Canada, center, and silver medalist Frankie Fredericks of Namibia pose with their medals after the men's 100 meter final at the 1996 Summer Olympics in Atlanta. (AP Photo/David Longstreath, File)

FILE - In this July 23, 1996, file photo, Bela Karolyi, right, congratulates Dominique Moceanu, left, after the United States captured the gold medal in the women's team gymnastics competition at the Centennial Summer Olympic Games in Atlanta. United States team coach Martha Karolyi, center, looks on.(AP Photo/Amy Sancetta, File)

FILE - In this July 19, 1996, file photo, American swimmer Janet Evans , right, looks on as Muhammad Ali lights the Olympic flame during the 1996 Summer Olympic Games opening ceremony in Atlanta. (AP Photo/Michael Probst, File)

FILE - In this July 23, 1996, file photo, members of the United States women's gymnastics team wave to the crowd after being awarded their gold medals in the team competition at the Centennial Summer Olympic Games in Atlanta. From left are Amanda Borden, Dominique Dawes, Amy Chow, Jaycie Phelps, Dominique Moceanu, Kerri Strug, and Shannon MIller. (AP Photo/John Gaps III, File)

FILE - In this Saturday, July 27, 1996, file photo, Shelly Martin of Spokane, Wash., left, and Roselia Norwood of Hawaii react after an explosion occurred in Centennial Park in Atlanta during the 1996 Summer Olympics. (AP Photo/Doug Mills, File)

FILE - This Saturday morning, July 27, 1996, file photo shows an overview of Centennial Park in Atlanta after an explosion struck a tower near a stage where thousands of people were watching a concert(AP Photo/Clive Brooks, File)

FILE - In this Monday, July 29, 1996, file photo, Carl Lewis of the United States celebrates after his third jump in the men's long jump final at the 1996 Summer Olympic Games in Atlanta. (AP Photo/Diether Endlicher, File)

FILE - In this July 23, 1996, file photo, U.S. gymnastics coach Bela Karolyi carries injured Kerri Strug following the awarding ceremony at the women's team gymnastics competition at the Centennial Summer Olympic Games in Atlanta. The U.S. won the gold. At left is Dominique Moceanu. (AP Photo/Susan Ragan, File)

FILE - In this Aug. 1, 1996, file photo, Michael Johnson, of the United States, celebrates after he won the men's 200 meter final in a world record time of 19.32 at the 1996 Summer Olympic Games in Atlanta. (AP Photo/Doug Mills, File)

FILE - In this July 23, 1996, file photo, members of the media pursue USA's Shannon Miller, of Edmond, Ohio, after the U.S. women's national gymnastics team won the gold in the team competition at the Centennial Summer Olympic Games in Atlanta. (AP Photo/Amy Sancetta, File)

FILE - In this July 19, 1996, file photo, American swimmer Janet Evans passes the Olympic flame to Muhammad Ali during the 1996 Summer Olympic Games Opening Ceremony in Atlanta. (AP Photo/Michael Probst, File)