Sir, I can speak a little bit to that, because I used to work in occupational environmental health and was responsible for the deployable health hazard assessment teams.
With respect to depleted uranium, we do have an agreement, a memorandum of understanding—which hasn't been terribly well used—whereby families' physicians can send away for uranium urine testing on individuals who believe they might have been exposed to depleted uranium, such as the individuals who served in the Balkans conflict, or they can be referred to an actual clinic to have that done. These are folks who are no longer serving. That, again, is an MOU. Colonel Ken Scott, our director of medical policy, could say more about that; we have folks, like the director of force health protection, who could as well.
From time to time, we're asked by other governmental departments to examine whether there's any possibility somebody was exposed. We will go back and examine records to find out, to the best of our knowledge, what health hazards may have been present or not. We even get letters from members of Parliament requesting that we look into particular cases. I know that in the directorate of force health protection we do the best possible job of looking at health hazards. Of course, in retrospect, it's extremely difficult to say definitively—