OK, so this was on Yahoo's front page. Please go look if you have a cat or dog.
http://news.yahoo.com/s/ap/20070317/ap_on_bi_ge/pet_food_recall This is the website you really want to check out so that you can see if your pet food is there. If it is PLEASE take it back to the store you bought it from immediately and they will refund you.
http://www.menufoods.com/recall/