WASHINGTON - NOVEMBER 11: Volunteers raise a wall on a Habitat for Humanity home being built during Operation Home Delivery November 11, 2005 in Washington, DC. During the course of the build, 51 houses will be built on the National Mall, representing each U.S. state and the District of Columbia. The build is in response to the need for housing after Hurricanes Katrina and Rita ravaged the Gulf Coast. (Photo by Joe Raedle/Getty Images)