Certainly. The $650 million was based on a number of factors. You mentioned “international experience”, and we looked at the current amounts in the international conventions that govern this area, notably the Paris Convention and the Vienna Convention. Both of those conventions require 300 million SDRs, and I think the equivalent today is around $500 million. So that was one of our considerations.
Another consideration was the existence of insurance to cover the liability. When we went to the insurers, they indicated roughly $850 million worth of capacity would be available. But they were concerned that catastrophic events throughout the world—hurricanes, etc.—could have downward pressure on that amount. So we felt the $650 million amount would be more appropriate.
Thirdly, the Senate committee studied this issue and came back with a proposal that the amount be increased to $600 million, which they equated to an international figure.
Finally, we looked at the risk of a worst-case design-basis incident. We relied on a study that was undertaken by the Canadian Nuclear Safety Commission, which indicated that for a worst-case design-basis incident, the extent of damages would vary between roughly $1 million and $100 million, based on the parameters.
So taking all those factors into consideration, we suggested the $650 million, and we consulted extensively with the operators on that amount and in time they were generally supportive of that amount.