Having formerly been a vice-president of business development for a technology firm, I have some firm views in terms of what's real technology and what isn't. As you point out, with the mercury, there was a certain time lag in terms of when it was commercially available. We actually hosted an international seminar on mercury technologies to take a look at where things were and to try to move it forward. We think we were pretty aggressive on that.
At the end of the day, is the technology real or not? I think it's really when you ask a supplier to supply technology and to guarantee its performance at a certain cost and take a penalty if it doesn't perform, and then it's real. If it's not, then it's not real; it's a prototype.
So there could very well be new technologies that are disruptive that do help with the situation. I don't discount that at all.