It seems to me that the coal story has been largely about metallurgic coal. Most generation is already a coal, so I don't think there's much of a play on it for oil or gas substitution. Because of this I think it will be very sensitive to a down turn in the global economy. I completely don't buy that China, India and Brazil have decoupled from the US economy. I'm staying away from it, on the other hand I thought oil was too pricey at $120 to bother buying the USO.