There's more than one purpose for it. That is one purpose, for sure: to be able to review what happened in the case of an accident, as we've seen many cases where there are serious accidents, particularly where there are fatalities. I can think of one from a few years ago—I think it was in the Brampton area—when all three people on a locomotive were killed. It was very difficult to determine what happened in that situation. Certainly, the Transportation Safety Board would want to use that information in investigations.
