Mars Petcare US Announces Voluntary Recall of 22 Bags of PEDIGREE®

Today, Mars Petcare US announced a voluntary recall of 22 bags of PEDIGREE® Adult Complete Nutrition dry dog food products due to the possible presence of a foreign material. The bags were produced in one manufacturing facility, and shipped to one retail customer

http://www.fda.gov/S...s/ucm411789.htm

How could they have possibly narrowed this down to 22 bags?? Also, I wonder how much this recall will cost them for this small amount. Ouch!