Thank you, Mr. Chair, and welcome to our guests. It's good to have you here.
I was interested in your comments that the Americans and any submariners wish to travel as quickly as possible and undetected. I assume that's one of the major reasons for having submarines in the first place.
You also indicated that what was important in the Arctic, from our point of view, was information, not necessarily a show of force. I wonder, given the tools that you have, whether you have adequate information. You have mentioned RADARSAT-2, you've mentioned the Canadian Rangers, and you've mentioned the marine security operations centres, which I gather do data collection and review as opposed to a surveillance type of operation.
Can RADARSAT-2 determine what the movement of submarines is underwater and under ice to the Northwest Passage, for example?