That would be tough. You'd want your cake and to eat it too. You would want foreign companies to say, “Sure, you can come into the United States or Europe and take over our companies, but when we want to go into Canada you're not going to allow us to take over your companies.” That would quite quickly—especially with the surge in protectionist sentiment within the United States—have a negative effect on the Canadian economy.
On June 14th, 2007. See this statement in context.