Also, there are sometimes monopoly issues that will always be present. I have a view that sometimes monopoly assets are best kept in the ownership of New Zealand investors, because, using monopoly theory, there will always be some level of monopoly rent extracted and why would you want to export that overseas if you're not capital constrained in your own country? In any event, they are now subject to rigorous review and can only proceed if the investment isn't in our national interest.