High-speed trains are not widely available in the U.S. , though some can top 100 mph . But that 's a bit misleading , some say . Expert : The Spain train is `` enormously complicated , '' nothing like U.S. trains . It's a very long and expensive project that will take years to complete. " Efforts to expand high-speed programs have met with little success in U.S .
High-speed trains are not widely available in the U.S. , though some can top 100 mph . Expert : The Spain train is `` enormously complicated , '' nothing like U.S. trains . It's a very long and expensive project that will take years to complete. " Efforts to expand high-speed programs have met with little success in U.S .