Need this ASAP - Hurricane Katrina's effect on aggregate demand and supply, and the resulting effect on quilibrium price level.

Using the example of Hurricane Katrina, an natural disaster that took place in the U.S. which had a major economic impact--. What effect would this event have on AD or AS, other things being constant? What would be the resulting effect on equilibrium price level? Explain. What will be the effect of the different tools of fiscal policy to stabilize the economy? Give an example of a built-in stabilizer and explain how it would work to reduce this rise or fall in the level of AD.