Parmigiano-Reggiano makers are putting edible microchips the size of a grain of sand into their 90-pound cheese wheels to combat counterfeiters::Italian Parmigiano-Reggiano makers are using microchips to verify the authenticity of their products and thwart scammers.
There was a HUGE scandal in the UK over rotten horse meat getting mixed into basically everything. This was part of the whole Ikea horse meat story from years ago.