I can defer to Heidi again on this question. I'm not aware of any conversation around banning particular vessels coming through our waters as a matter of principle.
Certainly through the COVID period, for instance, there was a prohibition that we instituted for our own waters to protect isolated communities from having commercial ships dock at their ports. We do certainly have that capacity. It could be exercised in the future, from a safety and security point of view, for search and rescue types of things, as you mentioned, or environmental concerns. It is a hallmark of the exercise of our sovereignty up in the Canadian north that we—