Here's a good analogy: Say you got a chest x-ray and there was a lump in your lung. It was not entirely clear what it was though, and it was impossible to tell for sure what it was. The doctor said that there was a 95% chance that it was a cancerous tumor, and a 5% chance that it was either a benign tumor or nothing at all. What would you do? I, for one, would certainly go through cancer treatment just to be sure. We call that the precautionary principle.
