It may be old hat in Europe and Asia to rocket through the landscape on a 200-plus-mile-an-hour train. But in America, all that promoters of high-speed passenger rail service have to show for three decades of effort are dusty feasibility studies stretching from Florida to California. Photo: California High Speed Rail Authority Simulation of high-speed trains in California. Yet by committing $13 billion in stimulus and budget funds to high-speed train travel to reduce traffic congestion and cut pollution, the Obama Administration is giving these projects a critical boost. A priority is a line that would whiz passengers 520 miles