No, I don't think could and should are the same here. Could not goes back to the rules of testing, by now we all know and agree (I think) that he can not be sanctioned based upon those tests. Whether he should be to me is a value judgement. Should somebody be able to cheat and get away with it or should they be held accountable no matter how the evidence turns up. I can say Lance can not be sanctioned for those EPO tests, but he should be. Whereas Chris can say Lance under the rules can not be and he shouldn't be, because the testing rules take precedent over the sport rules.