I would say the bigger risk is the huge demand in Asia for animal fats. Recently a company in Singapore has been buying up fat in huge quantities worldwide. They were at meetings with the North American rendering associations, lobbying all the companies. So the rendering industry looks at the margins, and they look for sources of income where they get the highest price. Clearly they have a responsibility to the domestic industry to provide material for domestic animal feed and so on, but clearly there's a huge worldwide demand for tallow, animal fats, and I would suggest that's probably a much bigger risk than biodiesel.
On May 16th, 2012. See this statement in context.