I can add that in the mid-1990s, Amtrak performed a series of demonstrations of European technology that included the X2000, the ICE Train, and the Talgo equipment, which really opened up the doors and started our whole process in the States. They were very successful, very well received. They actually included revenue demonstrations for periods of time. It sort of proved and took down barriers, but again, this is all equipment built to UIC standards.
One of the ways of protecting equipment is with the conversations you've heard recently about installing PTC. That inherently protects the equipment from collisions when you can't temporarily separate. I think that's the true approach to be taken with the introduction of these offshore standards.