I can begin and then let Steve speak to the details of that particular one.
Steve can correct me if I'm wrong, but we've had almost a labour issue a year with one of the national railroads, if we go back about 10 years. That does not include blockades, natural disasters or the severing of lines, so yes, it's a considerable concern. I believe there's the potential later this year for a potential CN disruption, but I will defer to Steve for the details.
It is concerning, and I think we need vision, leadership and strategy. Some of that comes down to the ministerial supply chain summit that happened earlier this year and that we participated in, committees like yours that are taking on this topic and making it a priority, and having a vision that is not tied to electoral cycles. We need five-, 10-, 20- and 50-year visions for our infrastructure in Canada.
For the actual details, maybe I will ask Steve to quickly comment on that particular CN issue, but it is concerning, absolutely.