China's interest in the Arctic is threefold, I would say.
One is economic, absolutely. It has shorter shipping routes from Europe and it will save them significant money.
Two is that it is expansionist. That's the determination of themselves as a near-Arctic state, but they have a voracious appetite for hydrocarbons, for rare earth minerals and for fish, so they see it as a critical element of their sustainability as a nation, and we have to ensure that the rich resources that are in the Canadian Arctic are protected.
Even science is always a huge issue when we're talking about national security. Yes, that need to share science for the benefit of all is critical, but we also have to be aware of and careful about what's being collected on science missions in the Arctic when they send icebreakers to the Arctic.
Understanding what is being done when they are there and ensuring that we have some management of it, those are the critical elements.