Fighting counterfeits, Italian cheesemakers turn to microchips
"Parmigiano Reggiano" is a nutty, salty cheese with a 900-year history. Under European rules, only cheese made in a certain region in Italy, and only cheese made under strict rules, can call itself "Parmigiano Reggiano." But the cheese is easy to counterfeit. Now, Italian makers of Parmigiano Reggiano are fighting back, by implanting an edible tracking chip in the wheels of their products.