If I may supplement just briefly, it's a traceability in terms of within the industry, in terms of cow X ending up Y, as opposed to the issue of is there human disease or not and are we able to trace that back to the source of the human disease.
In the case of listeria, at the time of the maximum of the outbreak, when there were seven cases a week in Canada and we had only seen a couple of confirmed cases, we were able to identify the source of that and trace it back to the original plant and stop it from infecting anybody else--against the background of 20,000 to 30,000 of us who have those symptoms every single day in Canada.
So our systems in terms of identifying the human risk and the human health issues actually are quite superior.