Could I just be clear on something? When we talk about assessing risk, risk is a continuum, of course, and safety is not an absolute. One of the hallmarks of SMS is that it's not about emotion. It's not about perception. It's about fact and evidence.
When we look at any scenario, and this is just one scenario, what we're looking at is what evidence there is of hazard or risk, and if we change something, what does it do to that risk, and what can we do to mitigate it. At the end of the day that's what the exercise is about. It's not about absolute safety, because if everyone in this room were to take an automobile to get back to their homes today, they would be at infinitely more at risk than they would ever be on an airplane. It's about understanding what that risk is and whether or not it's acceptable.