Absolutely. I spent several months helping the Institute for Research on Public Policy, here in Ottawa, carry out a study on the Lac-Mégantic accident. I do understand that this accident had to do with another sector—rail transportation. The principal investigator, Bruce Campbell, concluded that the existence of SMS is good, but that boots on the ground are also needed. In other words, on-site inspectors need to examine the railway's weaknesses.
When it comes to aviation safety, inspectors can see first-hand problems in the installation of certain screws, rivets and other parts, or the condition of the wiring in aircraft fuselage. So I think that SMS is a good tool, but that it is not adequate as the only tool. It should be supported by the presence of trained and seasoned inspectors—human beings.