The "recent USADA decision" is being broadly misinterpreted in my view. The AAA (American Arbitration Association) decision by a single arbitrator in the case of Eddy Hellebuyck, a marathoner who was first prosecuted by USADA in 2004 for violations occuring within 2 years of the date of the original prosecution, does not have any factual or legal applicability to anything that could apply to Armstrong as I see it. In Hellebuyck's case, he was formally sanctioned and given a 2 year ban on competition. After his case was pending and the sanction imposed, he gave an interview to a journalist in which he admitted to having used EPO more than two years before the time that he tested positive and for which he had been sanctioned. Based on his own admissions and confessions, USADA reopened his case and imposed additional sanctions and bans. Heelebuyck protested this additional penalty, and appealed. The AAA arbitrator sided with USADA and held that his original case, which had been timely prosecuted, could be amended to impose the additional penalty for the other violations that would also have been well-within the original statute of limitations in the original proceeding had they been known and discovered at that time. While the principal of delayed accrual for fraud is really what seems to have been applied in Hellebruyck's case, the actual basis for its applicaiton was that the original proceeding was timely commenced against him.
I have not listened to the Irish Radio interview, but I do not believe any formal "action" that has yet been "commenced" against Armstrong by USADA. And if that's so, we are now well more than 8 years out from the time when some have said Armstrong and USPS doped. If that's the case, then USADA can investigate all they want, but any prosecution or action against Armstrong, having not been commenced within 8 years from the time of the violations would be appear to be time-barred.
In other words, I disagree with the journalists who are attempting to put a spin on the legal interpretation of the applicable statute of limitations and the posssible exceptions to its appplication in this instance.
Now if what you're saying is that an "action" has already been commenced, and was considered "commenced" in 2010, such that it would be timely, i.e., going back to as far as 2002, then I would stand corrected. But I don't believe merely conducting a broad and unspecified investigation of doping in cycling, even if it happens to focus its attention on one cyclist in particular, actually constitutes the "commencement of an action" in the sense that is intended by the WADA Statute of Limitations language.