I think I figured it out. RC's canada Web site says they did have a problem with that in early 2006 and did a voluntary recall. I'm sure the lawsuit your link points to is somebody suing over that. According to RC, the problem has been solved.
http://www.royalcanin.ca/recall_statement.php
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Mike ~ Doting Dad to Jillie, Harper, Molly, Cooper, Eddie (RIP), Lucy (RIP), Rusty (RIP) and Jack (RIP).
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