whispers. some accusations about doping. some of it subtle, some not. for example, john leonard, a top u.s. coach, called the performance suspicious and not right. but ioc spokesman mark adams says the top five finishers of every event are tested to ensure clean wins. and ye was no different. suffice to say in this case, pure rumors, nothing at all of fact or substance, and i have heard no word at all from our drugs testing people. so i think people should really sit back and enjoy a great performance. wata, the world anti-doping agency and the ioc, they keep a close eye on drug use. athletes can be tested any time during the games, and their samples are sent to this lab. in east london, it s kept open 24 hours a day during the olympics. has a staff of 150 scientists. so with all the intense scrutiny, can you still game the system? victor conte says yes, and after all he did. he helped top athletes obtain steroids and went to prison for it. he says it s just as easy tod