Bud Selig published an open letter to fans today on what baseball plans to do about HGH abuse:

As Commissioner, I won't be deterred and will do everything I can to try to keep up with or even stay ahead of those who break the law and break our rules. But I suspect there will always be a few players who seek new ways to violate the rules, no matter how many we have and how often we toughen them. I also know that science can provide new ways to combat them and I will rely on our experts to keep on top of the science as it develops.

In the meantime, I want you to know that Major League Baseball is taking steps to address the issue. We are committed to funding a study of HGH and how to detect it. The study will be conducted by Dr. Don Catlin, a leading expert in the medical testing field. Also, we are willing to make additional contributions to fund other studies to determine how to detect HGH and are currently reaching out to experts in the field to ascertain what other studies can immediately begin. We invite other foundations, unions, sports and the Congress of the United States to join us in pursuing the detection and deterrence of HGH use.