I will, because I actually went up to Yellowknife and to Giant Mine. I have to say that the public officials who are working on that site, particularly Aboriginal and Northern Affairs, and Public Works, are really, for me, an example of the dedication of the public service in this country. There are engineers who have been on that site for over 10 years.
The site contains over 200,000 tonnes of arsenic trioxide. It's adjacent to Great Slave Lake, adjacent to the water source for Yellowknife. Because it's unstable—because it's powder—the plan is that it has to be kept contained forever because the permafrost has melted in that area. The plan is to have an underground frozen system that will be operating for centuries and centuries to come. That would just be one example and one of the four largest sites that are costing over $600 million to manage.