New Orleans residents walk through floodwaters that besiege the Crescent City on Tuesday, Aug. 30, 2005. (AP Photo/Bill Haber)
A military helicopter hovers over Interstate-10 in the flooded city of New Orleans on Tuesday, Aug. 30, 2005 as city residents walk along the raised roadway. (AP Photo/Dave Martin)
Rescue personnel help flood victims from a boat in the flooded city of New Orleans on Tuesday, Aug. 30, 2005, in Louisiana. (AP Photo/Dave Martin)
Rescue personnel search from victims as they traverse the New Orleans 8th Ward in the flooded city of New Orleans on Tuesday, Aug. 30, 2005. (AP Photo/Dave Martin)
Times-Picayune staff photographer Alex Brandon swims away from the paper in the flooded city of New Orleans during the aftermath of Hurricane Katrina on Tuesday, Aug. 30, 2005. (AP Photo/Bill Haber)
Hurricane Katrina evacuees clog Interstate 10 as they come into Slidell, La. from New Orleans on Sunday, Aug. 28, 2005. (AP Photo/Mari Darr-Welch)
Residents file into the Louisiana Superdome in New Orleans on Sunday, Aug. 28, 2005. (AP Photo/Dave Martin)
Hundreds of residents funnel into the Louisiana Superdome in New Orleans on Sunday, Aug. 28, 2005. (AP Photo/Dave Martin)
Floodwaters are pumped over the repaired 17th Street canal levee, Thursday, Sept. 8, 2005, in New Orleans. (AP Photo/David J. Phillip, pool)
In this Sunday, Sept. 4, 2005 photo, Jamaal Khalfani drapes a U.S. flag over his daughter Violet Riles to give her shade as they wait outside the Convention Center in New Orleans. (AP Photo/Steven Senne)
New Orleans residents stand outside Elanor McMain secondary school while waiting for the building to open as a shelter against Hurricane Katrina in New Orleans, La., Aug. 28, 2005. (AP Photo/David Quinn)
Thousands wait to be evacuated outside the Superdome, Friday, Sept. 2, 2005, in New Orleans. (AP Photo/David J. Phillip, pool)
Reginald Banks pulls his uncle's tool box through foot high mud in Violet, La., in St. Bernard Parish, Sept. 17, 2005. (AP Photo/Paul Sancya)
A woman cries while sitting with her two children after members of the U.S. Coast Guard transported victims of Hurricane Katrina to the airport, Sept. 3, 2005, in New Orleans, La. (AP Photo/Rob Carr)
Ed Goswick removes mud from the entrance of the Gorenflo Elementary School in Gulfport, Miss., on Frday, Sept. 9, 2005. (AP Photo/Darron Cummings)
Evacuees from New Orleans cover the floor of Houston's Astrodome Saturday, Sept. 3, 2005. (AP Photo/Pat Sullivan)
This is an aerial view of a flooded neighborhood on the east side of New Orleans, La., Thursday, Sept. 1, 2005, after Hurricane Katrina passed through the area last Monday morning. (AP Photo/Phil Coale)
Sand is blown off the beach at Fort Lauderdale, Fla. late Thursday, Aug. 25, 2005 as Hurricane Katrina came ashore. (AP Photo/J. Pat Carter)
Angel Carrasco watches the water level at the entrance to his apartment in Homestead, Fla., Friday, Aug. 26, 2005. (AP Photo/Luis M. Alvarez)
Nine-year-old Destiny Mitchell wears her teddy bear on her back as she and her family wait outside the Louisiana Superdome in New Orleans on Sunday, Aug. 28, 2005. (AP Photo/Dave Martin)
A Louisiana National Guardsmen holds back residents as they gather outside the Louisiana Superdome in New Orleans on Sunday, Aug. 28, 2005. (AP Photo/Dave Martin)
President Bush makes a statement from his ranch in Crawford, Texas, Sunday, Aug. 28, 2005, about the Iraq constitution process and Hurricane Katrina. (AP Photo/Susan Walsh)
Christian Griffin, 7, uses glow sticks to negotiate through the dark halls of his hotel as he and his family monitor the progress of Katrina as it hits New Orleans, Aug. 29, 2005. (AP Photo/Eric Gay)
Sand is blown off the beach at Fort Lauderdale, Fla. late Thursday, Aug. 25, 2005 as Hurricane Katrina came ashore. (AP Photo/J. Pat Carter)
Floodwaters surround homes in the aftermath of Hurricane Katrina Sunday, Sept. 11, 2005 in New Orleans. (AP Photo/David J. Phillip)
A man and his dog struggle to cross the street as rain and gusty winds pick up as the effects of Hurricane Katrina are felt in Miami Beach, Fla., Thursday, Aug. 25, 2005. (AP Photo/Lynne Sladky)
Nelson Nelasgor, 6, wades in water outside his Homestead, Fla. home Friday, Aug. 26, 2005 after heavy rains caused by Hurricane Katrina dumped several inches in south Florida. (AP Photo/J. Pat Carter)
Vilma Nelasgor holds her baby, Roger, as they stand in the door of their Homestead, Fla., Aug. 26, 2005 after Hurricane Katrina dumped several inches of rain in south Florida. (AP Photo/J. Pat Carter)
Evelyn Turner cries alongside the body of her common-law husband, Xavier Bowie, after he died in New Orleans, Tuesday, Aug. 30, 2005. (AP Photo/Eric Gay)
Vaugh Mordenti sings to a friend as he stands in the rain on Bourbon Street in the French Quarter as Hurricane Katrina nears New Orleans, Sunday, Aug. 28, 2005. (AP Photo/Eric Gay)
A New Orleans resident walks in the rain through Jackson Square in the French Quarter on Sunday, Aug. 28, 2005. (AP Photo/Dave Martin)
Evacuees wait to be moved from outside the Louisianna Superdome Saturday, Sept. 3, 2005 in New Orleans. (AP Photo/David J. Phillip, Pool)
Jeanette Ikner rests while her son Elijah, 1, sleeps while the two prepared to spend the night at Robertsdale High School in Ala., Aug. 28, 2005. (AP Photo/Rob Carr)
Debris from a fallen building covers several buildings in downtown New Orleans after Hurricane Katrina battered the Louisiana Coast on Monday, Aug. 29, 2005. (AP Photo/Dave Martin)
A New Orleans family tries to make their way through floodwaters in the downtown area of the Crescent City on Tuesday, Aug. 30, 2005. (AP Photo/Bill Haber)
Ernesto Delgado, 9, waits on top of his family's car for ice and water distributed by the Florida Army National Guard at the entrance to the Metro Zoo, Aug. 27, 2005, in Miami. (AP Photo/Luis M. Alvarez)
A military helicopter drops a sandbag as work continues to repair the 17th Street canal levee Monday, Sept. 5, 2005, in New Orleans. (AP Photo/David J. Phillip)
June Trach and Anestal Elmitor push Syvlia Tunis to a waiting car that will take her to another retirement center in Boynton Beach, Fla., Aug. 25, 2005 as Katrina approaches. (AP Photo/J. Pat Carter)
Floodwaters from Hurricane Katrina fill the streets near downtown New Orleans, La., on Aug. 30, 2005. (AP Photo/David J. Phillip)
Patricia Jefferson Joseph cries after viewing A dead body at left just outside the historic French Quarter in New Orleans, La., Sunday, Sept. 4, 2005. (AP Photo/Rick Bowmer)
Homes remain flooded to the roof by flood waters from Hurricane Katrina Monday, Sept. 5, 2005 in St. Bernard Parish near New Orleans. (AP Photo/David J. Phillip)
Dawnisha Stuart sits with her belongings outside the Louisiana Superdome in New Orleans on Sunday, Aug. 28, 2005. (AP Photo/Bill Haber)