One of the problems we have is that we have surprisingly little information. This is a point I wasn't able to make, but despite all the efforts, all the attempts, the funding for doing the basic research, as Mr. Sweetnam said, just doesn't seem to be there. If you have only so many dollars, you put it into restoration and not into finding out whether it works or not. That's one of our real limitations, that we don't have the appropriate evidence of how much and how effective it is.
On April 1st, 2014. See this statement in context.