In the case of certain ingredients such as wheat gluten or rice gluten and such types of products that can be used both in human food and pet food, the agency will pay special attention, because clearly there can be cross-contamination. An ingredient could be imported for pet food purposes and through some illegal manipulation find its way into the food chain. We want to make sure that doesn't happen here.
On May 3rd, 2007. See this statement in context.