I must confess I saw this first on The Pet Haven. Then I googled and found this. It seems that people are in danger of getting Salmonella from handling these treats.
This is from the FDA statement:
The U. S. Food and Drug Administration is warning consumers not to use Merrick Beef Filet Squares for dogs distributed by Merrick Pet Care with a package date of “Best By 111911” because the product may be contaminated with Salmonella.