NEW ORLEANS (Sept. 7)In the wake of Hurricane Katrina's devastation of the Gulf Coast, Americans are demanding that President Bush sign an executive order that would create a government agency to assist citizens affected by disasters. 'Clearly, there is a pressing need for some kind of federal agency to manage these types of emergencies,' New Orleans Mayor Ray Nagin said. 'A federal emergency management administration, if you will.' Nagin added that this organization's purpose could dovetail with another federal agency intended to secure the U.S. homeland, if such a thing existed. 