I think that some people view ethical oil in terms of where it comes from—from regimes that, let's say, are totalitarian and lacking appropriate human rights. Other people might discuss ethical oil in terms of environmental objectives, which is another set of issues. If I were to try to put a brand on it, and frankly, I haven't gotten into this discussion at all, I would look at the overall issues related to the choice of production of different energy sources.
Frankly, that's why I began with my point at the beginning of the presentation with respect to three objectives. In my view, I don't get particularly interested in discussing what's ethical or not ethical in our choices of energy sources. I like to go back to the main issues, things like efficiency, environmental stewardship, and, in the case of pipelines, I like to talk about diversification.