Five athletes tested positive for the stimulant bromantan and were disqualified by the IOC, but later reinstated after an appeal to the Court of Arbitration for Sport: swimmers Andrey Korneyev and Nina Zhivanevskaya , Greco-Roman wrestler Zafar Guliyev and sprinter Marina Trandenkova , all from Russia, and the Lithuanian track cyclist Rita Razmaitė . Dr. Vitaly Slionssarenko, physician to the Lithuanian cycling team and team coach Boris Vasilyev were expelled from the games.    The CAS overturned the IOC decision, because bromantan had only recently been added to the prohibited list,  and the athletes and officials were reprimanded.    The Russians had argued that bromantans wasn't a stimulant and thus not banned.  
2) Humans CAN kill animals for meat without tools, and have done so for hundreds of thousands of years. Certain bugs, eggs, ground birds, and shellfish have been on the human/hominoid menu long before complex tools. Same goes for large animals. Humans are proven to run large game to death under the right conditions, and it’s widely believed to be one of the keys to our species’ success. Persistence hunting without advanced tools is also the only accepted reason why humans are among the greatest long-distance runners on the planet. (We didn’t develop the anatomy to handle running 50+ miles if we were only gathering berries!) Research the Running Man Theory for more info.
[ Editor's Note: Chryste Gaines, MBA, Olympic gold and bronze medal sprinter and former teammate of Marion Jones in the 2000 Sydney Olympic Games, stated the following in a Dec. 22, 2008 email to in response to the IOC ruling:
"We are being unfairly punished. If the drug testing agencies cannot determine if an athlete is taking performance enhancing drugs how are the teammates supposed to know?... It negates all the family functions, church functions, and social events we missed in the name of winning an Olympic medal." ]