It got so hot in Phoenix yesterday that the planes couldn't take off! What would they need to to to start up rail service? (and not just the Sunset three days a week, but full daily service to nearby cities.) Maybe they should set up a satellite airport in Flagstaff, which at a much higher elevation presumably is a bit cooler, and run a train between Phoenix and Flagstaff. Was there ever a rail line between the two cities? I drove it once and recall having to cross a pretty major escarpment. This sort of thing could happen in other cities across the southern US more in the future. Perhaps it might be a good idea to have a rail alternative. Of course, the trains will be delayed because of heat kinks. Well, you can't have everything.