Yes, sir, I believe we need the capability to monitor subsurface activity. We did have a program back in 1987 that was going to put SOSUS equipment in the three choke points of the Arctic. You can basically see them on the slide, the two entry points of the yellow line and the red line near Iqaluit. If you had subsurface surveillance in those choke points, you would be able to tell if a submarine is entering the Canadian Arctic.
It's my understanding that there might be a program to address this shortfall, but to my knowledge we don't have this capability yet. It's one I recommended back in 2000 and numerous times thereafter.
I'd like to come back to the suggestion that yes, somebody has to guard the gate but it may not necessarily have to be the armed forces. If the coast guard were tasked with that mission, I am sure over time they would be very capable. As Suzanne has mentioned, in terms of maritime activity and maritime experience in the north, it's the coast guard that has that.