Okay, I'll answer it this way.
On the gas side of the spectrum, it's all about supply. The U.S. is going to be in an oversupply position within the coming years, so Canadian gas is not going to be needed in that market, at least on a net basis. On the oil side, we've looked at this in many different lights and we do not see where the U.S. can become oil independent any time in the next several decades. That means imports are going to be required. I think they'll be coming from Canada. I actually believe Keystone XL will be approved, probably in the next administration. But, on a go-forward basis, Canadian crude is still needed in that market.