>2. It is possible that the discovery of a tumor doesn’t mean cancer. This was a debate in breast cancer treatments- a lot of heartache and suffering can occur from a cancer scare and there has been existing controversy regarding early testing given this.

The same thing is true with thyroid tumors. A lot of people got their thyroids removed because they had tumors called "thyroid cancer", and now the consensus is that these tumors, while not completely benign, are so slow-growing that it's not worth it to remove them in most cases. Many times, people were only found to have these tumors after they had died (of something else).