No, prions are extremely indestructible, and even under certain pressure and temperatures, through rendering processes, they don't get 100% broken down. But again, the environmental standards in terms of deep burial and containment of those issues have been looked at. There has been a lot of research in that area done in Europe, with the experiences they've had there. Thus far, from a BSE perspective, we've not been able to demonstrate environmental contamination in terms of propagation of BSE and its spillover to other species, with extensive work and real-life experience in Europe. But it doesn't mean that we aren't continuing to look at that in terms of the interim solutions, and again, working with the provinces, since they have that environmental responsibility, to make sure that jurisdictionally we're not creating a longer-term problem for ourselves.
On February 28th, 2007. See this statement in context.