Billions have been spent. It’s not enough.+ READ ARTICLE
Scientists rank hurricanes according to the power of their winds–Category 5 hurricanes, the strongest possible, must have sustained winds greater than 155 m.p.h. (250 km/h). But the damage a storm does is a product not just of its strength but also where it hits. A powerful hurricane that never reaches land will be forgotten by everyone but meteorologists, while a relatively weak storm can wreak havoc if it strikes a heavily populated coastal city.