Yes, there's a real need for that. If I look back to 2010-11, that was a concern. We did a number of trials and tests on having sensors on the ocean floor to know who's in the north.
As I'm sure the committee is aware, there are submarines that go through our north—we would call it part of Canada's waters—on a regular basis that we are not aware of. We are informed, I think, through partnership, but we really don't know what's going on under the water in Canada's north, so I think it's a step in the right direction.