"we couldn’t rule out the possibility that the low level of zeranol in Ms. Wilson’s sample came from beef containing zeranol residue just below the minimum detection level."
That's what I'm talking about. The point I was trying to make was that the possibility should be reasonably plausible in the first instance, to even be considered by USADA.
Ok so it is released into some cows, and an allowable amount exists at slaughter. How much of that amount is in different tissues? What tissue was eaten? Does that concentration in that tissue survive cooking, and what type of cooking was done, at what heat, and for how long? And how much of whatever was in the tissue, and whatever survived cooking, survives the digestion process depending on what else was eaten at the time, and actually get transported to the blood intact? And of that residue, what is the time-rate of uptake into other tissues, and degradation?
Without such details entered into evidence by the athlete, it would be difficult at best to consider the mechanism reasonably plausible--which is why there should be some such evidence in the record in the Wilson case.
A problem is that, unless I am mistaken, there is no adverse party to appeal the ruling based on legal insufficiency. Maybe other countries should be able to appeal the ruling of a national ADA to a WADA appeal board. Can they? I have no idea. But such a mechanism could help disrupt any national ADA actions that would tend to inappropriately or wrongly protect a national athlete.
Heck, I'll do it as a private, disinterested third party! For a nominal fee, of course. :)