New Doping Test Unveiled

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If athletes on performance-enhancing drugs are trying to hide a dirty little secret, on Thursday the World Anti-Doping Agency announced a little secret of its own.

As CBS News Correspondent Lee Cowan reports, a test that researchers kept secret for months is now available to detect Human Growth Hormone - a muscle-enhancing drug.

"I would rather they were faced with a very unpleasant surprise," says Dick Pound, president of WADA.

It could be very unpleasant for the U.S. Olympic track and field team, which boasts some of the sport's biggest names but also some of the most suspicious.

A federal investigation of a San Francisco nutrition company ensnared at least six potential Olympians, after it was discovered they had been using the steroid THG.

U.S. sprinter Torri Edwards, the reigning world champion in the 100 meters, was just days away from competing in Athens when she too was suspended for taking a banned stimulant.

And Marion Jones, winner of an unprecedented five Olympic medals in Sydney, is competing, but under the cloud of her own drug investigation.

Testing for illegal substances has become almost an Olympic event itself. Nearly every game since 1968 has offered a new test for a new cheat.

In Sydney it was designer steroids. In Montreal it was diuretics. In Munich it was Ephedrine. In Mexico City it was anabolic steroids.

"The likelihood of getting caught is getting larger every day," says Pound.

These days it seems it's only competitors like the U.S. sailing team that don't have to worry about drug testers tapping them on the shoulder.

One coach described it this way: "The better the athlete's doctor, the better the athlete."

The Olympic drug czar had a different take. He called the world of doping nothing short of "sleazy." Not a word often used on such a grand stage, but a word he says, is now sadly fitting.