The question really relates to a strategy of systemically strengthening the regulatory and the oversight system.
The first step we took was to overhaul the rules for SMS in 2015, and then the second step was to ensure and put in place more standards for what had to be in a safety management system that is more likely to relate to better outcomes. The second step was ensuring compliance to these higher standards by auditing all of them.
The third step is using the data from the SMS audits and the data from other sources to begin to get a better sense of which particular elements relate and what effect they have on safety outcomes.
We've done the first two, and we're now working on the third. The follow-up report from the Auditor General has given us some good guidance, and in the process of that report, there have been some very robust discussions between Transport officials and AG officials in terms of how to take that next step, recognizing it's a very difficult one to do, and even around the world, I would classify it as an emerging practice.