I can answer that.
I would say, in terms of improvement, understand how important the data that we are collecting is and how that data is used. The benefit over the last many years, based on the systems that we're introducing, is to provide what I refer to as a high-definition picture of what is going on within an operation so that you can focus your efforts and your interventions on the system in the right place. That has fundamentally changed the way airlines operate. That data is important because it takes us to where the problems are.
I should say, though, on the risk assessment that I just want to make a point, which is that the importance of a risk assessment in all of our operations should not be underestimated. We conduct them—to a point that was made earlier—literally on a daily or weekly basis. There might be a small risk assessment to a more exhaustive risk assessment. In a high reliability industry like aviation, you do not want to introduce unintended consequences. That's why we take our risk assessments quite seriously, so that we can identify any of the residual risk that is left and try to mitigate that risk, because at the end of the day, you don't want to do any harm. Risk assessments play an important role in the safety oversight that the organization has.