I have a couple of questions, or maybe it's going to be one.
You mentioned that the panel was gobsmacked to hear that the priority of the stakeholders for air travel and the air industry was the air traveller fees and security charges, that it was something that each and every one of them highlighted. I'm wondering if you can tell us what your thoughts are on how those fees would be affected if a national carbon tax were implemented. What would the impact be on the aviation sector of a carbon tax? Do you see that also...?