The way in which accident and safety analysis goes is that we don't go beyond and calculate that chain of probabilities because it's the most conservative number that's used. I don't have that number with me today. We could make it available to the committee, if it's important.
The nature of safety analysis is to look at the worst-case scenario, and that's the one-in-a-thousand probability of an earthquake. But all the rest, the chain of events that occurs from there, takes that probability to a much lesser number.