But those who have battled doping for much longer in cycling, track and field, and other sports said that's wishful thinking. Hard experience has taught them that the economic and competitive drives behind doping inevitably lead athletes to newer, more effective, less detectable substances and methods.
Imagine if you wanted to run a marathon and could receive a simple shot that would tell your muscles to be better suited to endurance.
Or what if you tore your knee and an injection of your own stem cells not only helped it heal but also left the joint stronger than before?
These are not far-fetched scenarios reserved for science fiction but very real possibilities given the direction of medical research.
And that scares anti-doping officials at the highest levels of sports, who know that athletes will seize on any medical breakthrough to push their bodies to surreal heights.
"No matter what resources you put into enforcing the rules, there will be those who want to break them," Howman said. "If you're looking for a battle that is going to be won, this probably isn't it."
Even as professional leagues and law enforcement agents get better at catching steroid abusers, athletes have moved on to insulin and slightly altered versions of previously detectable designer steroids.
Eventually, scientists say, performance-enhancing substances might seem antiquated, left behind by genetic manipulation and medical procedures involving stem cells.
Human growth hormone is the first hurdle to clear. As the Mitchell Report made apparent, many athletes have turned to hGH for injury recovery or as a substitute for anabolic steroids (though scientists disagree over its effectiveness as a strength builder).
Baseball commissioner Bud Selig wants to convene an expert conference on hGH. Longtime drug researcher Don Catlin, who has received grants from Major League Baseball and the NFL to work on a reliable urine test for the substance, said he's making progress.
But by focusing too much on hGH, drug experts say, baseball officials could miss the reality that many athletes have already moved past it.
In the quest to keep up, WADA officials have spent five years courting the world's leading genetic scientists. Despite such efforts, Howman called improper use of genetics a "distinct threat."
"It's something that can and probably will happen, given athletes' tendency to push the envelope," said Dr. H. Lee Sweeney, a physiologist at the University of Pennsylvania.
The technology for gene therapy is evolving slowly, he said. Right now, researchers have to use viruses to get genetic alterations into the body. These injections trigger immune system responses that can be deadly. But the theoretical benefits of gene manipulation are staggering.
"You could change any property of the muscle," Sweeney said. "You could make it bigger, stronger, better for endurance. You could gear it to training so that you need a lot less effort to get the same effect. You could certainly extend the competitive life of the athlete."
Such manipulations might be undetectable without biopsy, he added.
By injecting adult stem cells into rats, Dr. Johnny Huard, a researcher at Children's Hospital of Pittsburgh, can speed and improve muscle healing. In some cases, the treated muscles end up stronger than they were pre-injury.