ESPN has a list of questions the Mitchell report should answer:
http://news.google.ca/news?hl=en&q=m...-8&sa=N&tab=wn
"And will Mitchell criticize the owners and commissioner Bud Selig?"
MLB turned a blind-eye to steroid use when baseballs started flying out of the park. Fans love the long ball. Look at the attention given to the McGwire/Bonds home run chases in recent years.
The current drug policy gives players plenty of opportunity to clean up before a test.
Players aren't the only ones to blame. Steroid use was encouraged and some clubs facilitated that use.