In answer to that very good question—and it's one that we spend a lot of time drilling down on—it features in the current work we're doing establishing indicators of effectiveness of SMS systems.
There are a couple of principles that guide us in that, and the first is that we look at incidents in terms of how grave they are. The number one indicator is the risk to the health and safety of Canadians, not the economic cost of the accident. That's very much secondary, if not hardly even considered. It's the risk to the health and safety of Canadians, the risk of disrupting communities and the risk to the environment. Those are the factors that we consider.
I'll give you an example. With regard to uncontrolled movements, we have put in a significant number of stronger regulations on uncontrolled movements. We analyze them carefully. It's a key factor in our risk-based oversight.
I would say that we are not satisfied. There are still too many uncontrolled movements, and we are continuing to drive on the SMS and on the regulatory standards. We've made changes within the last year. We—