New Orleans sank deeper into crisis Tuesday, a full day after Hurricane Katrina hit.
"It's downtown Baghdad," said tourist Denise Bollinger, who snapped pictures of looting in the French Quarter. "It's insane."
The mayor estimated that 80 percent of New Orleans was flooded, while a countless number of residents were still stranded on rooftops.
Hospitals were running out of power and scrambling to find places to take their patients. At one clinic, broken glass littered some areas and patients and staff had fallen on floors slick with floodwaters.
"It's like being in a Third World country," said Mitch Handrich, a registered nurse manager at Charity Hospital, where nurses were ventilating patients by hand after the power and then the backup generator failed. Some 300 patients had yet to be evacuated, but the babies in intensive care had been flown out.
"We're just trying to stay alive," Handrich said.
Gov. Kathleen Blanco said that everyone still in the city, now huddled in the Superdome and other rescue centers, needs to be evacuated. The Federal Emergency Management Agency is considering putting people on cruise ships, in tent cities, mobile home parks, and so-called floating dormitories — boats the agency uses to house its own employees.
CBS News affiliate WWL-TV reports that many parishes are not allowing residents to return under any circumstances.
CBS News Correspondent John Roberts that the New Orleans' mayor said that it will be two to four weeks before anyone is allowed back into downtown. It will take two weeks to deal with the flooding and it will take at least a month to repair the power grid.
Rescue teams were still picking up people throughout the city Tuesday, leaving them on island-like highway overpasses and on a levee to wait to be moved again. Eventually, they will end up in the Superdome, where 15,000 to 20,000 people have taken already refuge, said Louisiana National Guard Maj. Gen. Bennett C. Landreneau. One person died at the Superdome attempting to jump from one level to a lower one.
Among the evacuees are 5,000 inmates from New Orleans and suburbs that need to be moved. Officials were trying to figure out how.
The historic French Quarter appeared to have been spared the worst flooding, but its stores were getting the worst of human nature.
"The looting is out of control. The French Quarter has been attacked," Councilwoman Jackie Clarkson said. "We're using exhausted, scarce police to control looting when they should be used for search and rescue while we still have people on rooftops."
CBS News Correspondent Lee Cowan reports that the order that prevailed in the city leading up to the largest evacuation in history is now beginning to fray.
At one downtown Walgreens, when police finally showed up, they assisted looters take food and other essential supplies over to another neighborhood that had been hit harder.
As Sen. Mary Landrieu flew over the area by helicopter, a group of people smashed a window at a convenience store and jumped in.