I don't think trade agreements are ever going to protect us in every conceivable situation. As we've seen in emergencies, countries, like individuals, look out for their best interests, and they're always going to do so. Nonetheless, I believe a regional idea allows us to rely more heavily on people with whom we have long-term and trusted relations so that those types of problems are less likely to arise in the future.
We see, and have seen in the past year, that a lot of our supplies come from countries with whom we do not have very good relations and with whom those relations are deteriorating. I think the regional model would minimize some of the risks, but you can never eliminate all of them.