WE DO NOT YET KNOW enough to make a definitive estimate of the amount of time it will take to get the pipelines pumping at full capacity, all of the refineries up and running, the port operating on a normal basis, and other parts of the Gulf Coast economic structure back into pre-Katrina shape. But we know a lot more than we did in the first days after the storm.We know that, unlike the local residential sector, the nationally important economic infrastructure will recover surprisingly quickly. This reflects, at least in part, the unambiguous incentive that the private sector oil,...