I have one last question for you, Professor Pharand.
Earlier, you appeared to be receptive to the argument that Canada's claim could be tied to the occupation of the land since time immemorial and to efforts to scientifically prove the boundaries of the continental shelf. Now, some people are saying that in order to exercise full sovereignty, control over the land is needed. Experts have told us that if ships enter the Northwest Passage, we should think about boarding them, stopping them or intercepting them. Otherwise, we would be demonstrating that we occupy the territory and that the offshore continental shelf belongs to us, but that we do not control the territory.
Do you think these vessels should be boarded? How do we avoid a military operation? Is there some way of boarding a vessel other than by carrying out a military operation?