The recent damage from Hurricanes Katrina and Rita shows that the U.S. is very vulnerable to climate catastrophes. Researchers point out that the North Atlantic has entered its active 35-year period; thus after 35 years of relative hurricane lull, we are poised for decades of violent weather. In the aftermath there is a strong political will and inclination to spend money.... [I]n the real world, most proposed programs are very costly and only some can be done. So we should start with the best ones first. Such prioritization has its intellectual footing in the global prioritization process initiated by the...