I'll answer first on the risk assessment, if I may, Mr. Sullivan. Basically, although CN may want to release information and has said that it would release some information, the information is not only proprietorial in terms of business but is also security information, so the department has to look at it from that perspective.
With respect to the questions around the severity of Lac-Mégantic, I said it that way because it was such a horrible loss of life as well as an environmental degradation. Although we have seen a number of derailments that have also ended with an escape of fuel and a subsequent fire and damage, they have never been to that extent....
That's exactly what we're trying to do with this kind of act: to prevent that from happening. We've been working collectively on that since I think July 2013.