I have always wondered if maybe he didn't dope but clearly was taking drugs during his cancer treatment - at least I assume he was. That treatment, clearly medically required, may have had some long term benefits. At the very least it may change his perception of pain threshold.
This latest bout is pathetic, one sample that 'may' be suspect but even the lab won't stand behind the sample.
Given the amount of attempts they have all had at pinning something on him and failed I think WTC should allow him to race. If it proves positive, which is unlikely, then strip him.
WTC should admit there may be a case to answer and state that if guilty then he will be dishonourably discharged and kicked in the nuts. Until then race away.
To be honest I suspect that many of the triathlon pros may take banned substances in the future (given flu remedy is on the banned list) and therefore shouldn't be allowed to race ever - ban all the pros!!
M.eface
Now for the silly bit.
May favorite bit is the British Triathlon Federation ban anything that is performance enhancing which always makes me laugh. TT bikes are performance enhancing, as is a good diet, and even training. The Brownlees have even gone on record to say they have trained - it is clearly perfromance enhancing so ban them.