Certainly the fact that we don't have a significant import capacity for natural gas is one of the things. We need liquefied natural gas facilities. Alan Greenspan said it much better than I can. I don't know if I can find his quote in time, but basically what he said was that you need an effective liquefied natural gas import capacity into North America in order to provide price stability.
The other thing that I would say is driving it is that every time we shut down a coal electricity generating plant without providing natural gas producers with the ability to increase supply, it's a zero sum game. If we shut down coal plants and we don't build the Mackenzie Valley pipeline, then we're not going to have enough natural gas to feed our industries in North America in the future.