Do your due diligence because a lot of people read this site. Excerpts from  http://www.snopes.com/politics/business/barcodes.asp

what those country codes indicate is the country or economic region where a particular bar code was assigned, not necessarily the country where the product identified by that bar code originated:

The 3-digit prefix code indicates which numbering organization has allocated the bank of numbers to the company.

if a Mexican company imported fruit from Guatemala, then packed and shipped that fruit to the United States, the country code portion of the final product's bar code would likely indicate an origin of Mexico rather than Guatemala.

In determining the country of origin of a product sold in the U.S., consumers should still look for "Made in [country name]" labels on the packaging.