I can't say that we've studied the impact of any particular option on the airports or airlines. We haven't. But what I can say is that it is extremely important to ensure very good connectivity with the key hubs and the key modes. In fact, I think that probably the viability of a lot of the options that you may be considering eventually will depend on where we're able to get traffic. If we're able to have good connections with particularly the inter-city services within the greater metropolitan regions, such as the services of the AMT in Montreal, or the equivalent services in the Vancouver area, or GO Transit, and potentially we can even provide services for some of that market, say Oshawa to Toronto, as an inter-city service, we could potentially service that by high-speed rail. If we were able to pick up some of that traffic, it would actually make the overall high-speed service much more viable. So that's why it's important to ensure very good connectivity.
The way we measure connectivity is to look at the ease--and not just the speed--of transferring from one to the other. People travel with bags and everything else, so the more the hub is designed to facilitate that transfer, the more attractive it is from a passenger perspective. I think it's actually one of the essential ingredients of a good option.