Well, as one of my colleagues said earlier, we are getting suppliers who honour their contracts with us, so we have not seen our major trading partners impede supplies to Canada.
My idea behind the regional suggestion is that we really shorten some of the supply chains and limit the number of countries we deal with in order to reduce risk.
As everybody knows, in a crisis you're never going to be able to enforce what is essentially a contract between states. You'll never have that contract honoured in cases of national crisis. People are always going to act in their self-interest in a crisis, but I think reducing the number of people we depend on helps us achieve a higher level of security, even though the idea of absolute security is never going to happen.