There used to be chemicals in wood to make it repel water. It's now being done with a copper-based product. In almost any major hardware store you go into, you'll find that. That's one way that we're moving in a different direction.
This kind of leads me to my next point. You talked about “toxic” being perhaps an inappropriate term. Previous witnesses have talked about “toxic” creating an inappropriate stigma. Can you elaborate a little bit on that?