I work in the electric utility industry, and there has been much activity in the last 10 to 20 years in improving combustion turbines for peak electricity generation. Many combustion turbines today can be fueled with either #2 fuel oil (which I believe is the same as diesel fuel) or natural gas, thus providing some fuel flexibility. I know some locomotives in the past utilized combustion turbines, but I don't think they ever caught on in the railroad industry. They are likely more expensive than a reciprocating diesel engine, but I believe they are quite a bit more fuel efficient as well. Do any of you guys think we might see this technology used in the future in significnat amounts for locomotive prime movers?