I have to add something, though, because you have made the assumption, Mr. Julian, that we are doing a safety audit or that there will be zero accidents. I think people would be wrong to think there will be zero accidents. This is just not possible. It's all about risk management. Accidents will continue to occur, it's obvious, but the reason we want to implement SMS in aviation and in the rail sector is to reduce the rate of those accidents--in other words, to save lives in the future.
So that's why. But we can never say zero lives will be lost. It's just not possible.