Here is the latest news on this:
http://story.news.yahoo.com/news?tmpl=s ... usa_doping
"American anti-doping chiefs revealed that a new anabolic steroid, which up until now has escaped all known doping controls, has been found in the test samples of several American athletes who competed at the national championships."
"Madden said the agency is confident that the BALCO laboratory, which is operated by Victor Conte, who has worked in the past with American footballers, body-builders and athletes such as Kelli White and Marion Jones (news - web sites), was the source of the substance."
More bad news it seems...