Environment committee  The greater the uncertainty, the more you need to take precautionary measures to address that uncertainty, which seems quite common-sensical to the average person. When you don't know what the problem is, you have to be careful. If you're not certain that there's no problem, you

Environment committee  I have a couple of minutes. If I can finish when you're back, that would be just perfect. Thank you.

Environment committee  If not, maybe we can finish it up when you get back. Thanks very much for inviting me to present on behalf of the Canadian Strategy for Cancer Control. I'm the chair of the National Committee on Environmental and Occupational Exposures, which works under the Canadian Strategy