On your question about our mandate, we have a full mandate to make any recommendations that we see fit. So if we are able to demonstrate, through one or a number of investigations, that there's an underlying safety deficiency, we do not hesitate to make a recommendation that the deficiency be addressed.
On the statistics, I did say that they bounce all over the place. You have to really stand back and take a careful look at the underlying factors at play. We are investigating a number of derailments this year, and thus far there doesn't seem to be any one pervasive factor. There are always a number of contributing factors. So we work objectively and methodically to determine what happened and why so that we can figure out if there are any systemic issues that need to be addressed. If we do find those systemic issues, we make recommendations.