In terms of the system that's being proposed in this bill to cover liability, a $650-million limit, above that it appears that the federal government would be responsible for any further liability that would come from a catastrophic failure of any systems. But in the U.S. they have a different system. They have a system of pooling the overall amount of $9.7 billion liability, with individual plants being responsible for $300 million. Perhaps you could describe why we wouldn't go to that system in Canada, matching up with our neighbours in North America.