Perhaps I could jump in just to say it's very important, because this did not get into the media in Canada. It illustrates that the Chinese security interest cannot be underestimated. This past couple of months—I can't remember the exact name or the date—a Chinese-Russian naval task force sailed into the Aleutian Island waterways. They stayed within international waters, but we have never seen the Chinese and the Russians as a joint task force coming into northern waters. What this illustrates clearly is a desire to work with the Russians. It also illustrates a desire to build capability to sail into these waters.
The second point that's not being covered is that the Xue Long engaged in one of the most active mappings of the Arctic region, where one presumes submarines would be sent.
Once again we can presume that when they went through the Northwest Passage, they mapped that, because that was one of the terms—that we allowed them to do scientific research. In fact, if you talk to the Americans, they have a huge concern about the effort the Chinese have been making with their two icebreakers to map the Arctic Ocean region. One can assume that in the long term that means submarine passage.