Jamaica sprinter Usain Bolt has shattered the previous 100m and 200m records in a way never seen before. Michael Phelps now boasts twelve gold medals. Their feats are extraordinary. But are they humanly possible? Read more

Chinese authorities are determined to host a clean Games. To accomplish this, and avoid the repeated embarrassments of the 2004 Athens Games, a staggering 4,500 drug tests have been programmed. Twenty eight cases were revealed in the last Olympics, up from Sydney's 10 in the year 2000. Read more