What I can say is that we have noted some areas with respect to rail infrastructure with testing by using ultrasound technology. It can have some blind spots depending on the condition of the rail. I know that the railway industry is investing quite heavily in new technology to improve rail track structure, since about 39% of our rail derailments on main tracks are attributed to track infrastructure issues. It's something we look at carefully whenever there's a derailment to see how often it was inspected and how it was inspected. In about nine of our 23 ongoing recommendations, we're looking specifically at that aspect.
On May 16th, 2016. See this statement in context.