I think it goes back in history to other trade deals. The American Soybean Association was very effective in getting a better deal under previous arrangements, and canola is a more recent product than soybean oil is. We face discriminatory tariffs in canola consistently around the world, not uniquely in Japan. More often than not we'll find ourselves at a slight competitive disadvantage due to tariff differentials between canola and soybeans in particular, and I also referenced the sunflower tariffs. I don't know the reason for that, but that's a domestic policy that's been implemented on some of these importing countries.
On May 17th, 2012. See this statement in context.