1. A method of discouraging the counterfeiting of product labels comprising: printing within the label a plurality of small dots that are interpreted by the counterfeiter as a speck of dirt or a flaw or misprint in the printing of the label so that the counterfeiter will counterfeit the label without reproducing the plurality of small dots, and printing the plurality of small dots at a particular location or in a particular pattern such that a trained observer can examine a label and discern the presence or absence of the plurality of small dots to thereby conclude that the label is authentic if the small dots are present and counterfeit if the small dots are absent.