Why do you think so many diagnoses of thyroid cancer are wrong? Is there a fundamental flaw in the practice of doing biopsies? That would be scary indeed!
To be sure, Iodine supplementation and other alternative treatments can help prevent thyroid cancer ... especially if folks can stop "zombie-fying" their thyroids with the likes of Synthroid. But I always thought that if a diagnosis of cancer is made then, well, you have cancer. Yet surely a second biopsy from a different lab would be prudent.