I think I'll respond first to the question of innocent passage.
As I mentioned previously, Mr. Chair, the territorial sea is beyond our 12-nautical-mile baseline, so it's not the internal waters of Canada, but it's something we have a great deal of sovereign rights over. However, there is the right of innocent passage for every state to move through the territorial sea if it's considered innocent passage. The way they define that in the convention is that the passage is innocent as long as it is not prejudicial to the peace, good order or security of the coastal state.
Obviously, you can't use weapons when you're in the territorial sea. That's not considered innocent passage. You can't carry out unlawful acts or serious acts of pollution in the territorial sea. You can't carry out research or surveying activities without the permission of the coastal state. Basically you're told that you have the right of innocent passage to just pass through. That's something that all states under the Law of the Sea Convention adhere to quite strictly. Canada takes advantage of that in other places in the world.
With respect to Chinese ships, we have noticed in the last few years that they do carry on research, marine scientific research. They haven't done it in our internal waters. They have done it a few times in our territorial sea, and they have asked for permission, and we've granted it. In one case, we in fact had scientists on board.
As for some of the infrastructure, I think I'd better defer to Mr. Hamilton about that.