Eventually new technology exposes a counterfeit. There was a recent NOVA about fake dead sea scrolls and the competition between counterfeiters to create better

Eventually new technology exposes a counterfeit. There was a recent NOVA about fake dead sea scrolls and the competition between counterfeiters to create better fakes and forensic experts to weed them out. At the time the episode was filmed about a third of the scroll fragments owned by the Museum of the Bible were proven fakes. Now the rest of them have been proven false.