It's like what we've done with polio. We've reached a tipping point in polio, in trying to eradicate that disease, so we've moved a long way along the spectrum.
I would like to move for a moment over to the partnerships that you're building with the private sector. I'm really glad to hear those things are coming along. What has been your experience with the extractive industries, with the ones that you've worked with? That is an area of expertise for Canada. We have many extractive companies working around the globe. I've seen many of them in Africa myself. What's been your experience with them, and how good are those partnerships for you?