I think I can start with that, Tom.
It's an excellent question, and thank you for it.
In terms of safety improvements and the direction from the government, here at CP specifically and at CN we are moving towards more machine-based, data-driven inspection technologies, more performance-based technologies. We really, truly work hand in hand with Transport Canada.
More recently we have developed cold wheel technology to better assess the operation of air brakes and have integrated machine vision inspection systems, which are high-speed cameras, with the remote safety inspector desks, who have all eyes on our trains.
What this has done is it has moved us away from a traditional visual, static inspection in which the train is not moving. We're moving our inspections to a dynamic, in motion, performance-based inspection. This is resulting in far more equipment being picked out and sent to maintenance shops, and as I mentioned before, it's resulting in many more eyes on the equipment, using the technology.