Thank you for the question.
From our perspective, one of the key things we are doing is monitoring the situation in terms of the statistics and the volumes. I know that Christian's group is reviewing a lot of the commodities that are on the rail network system. Part of that is monitoring what's happening going forward and being able to report in terms of how the mix of commodities is changing over time, and then thinking about what type of remedies we may need to put in place given the risks that may be coming up. In terms of safety and security, we have an area within the department that we would be providing that information to, and then they would be looking at the potential risks and what some of the potential responses to those risks would be.