Caller: I'm in here with a handicapped girl and I got a baby that is on a pump machine. And he is on a ventilator. He is on the bed and the water is coming up.
911: I need your address to where you they are.
Caller: I can't give you the address because the house has moved.
CBS News Correspondent Byron Pitts reports there is one call that dispatcher Levette Josephs says she will always remember.
Jospehs said she people were holding babies over their head in order to save their lives. Police later discovered the woman and her children drowned.
Operator Mary Knight answered a call from a man trapped in an attic with water up to his chin.
"You can just hear the bubbles as he was trying to talk," Knight said. "You know, because he was just going under."
Listen to audio from the New Orleans 911 tapes.
Also, in New Orleans, the bodies of more than 40 mostly elderly patients were found in a flooded-out hospital in the biggest known cluster of corpses to be discovered after Katrina.
The exact circumstances under which they died were unclear, with at least one hospital official saying Monday that some of the patients had died before the storm, while the others succumbed to causes unrelated to Katrina.
The bodies were found Sunday at the 317-bed Memorial Medical Center, but the exact number was unclear. Bob Johannesen, a spokesman for the state Department of Health and Hospitals, said 45 patients had been found; hospital assistant administrator David Goodson said there were 44, plus three on the grounds.
Goodson said patients died while waiting to be evacuated over the four days after the hurricane hit, as temperatures inside the hospital reached 107 degrees. "I would suggest that that had a lot to do with" the deaths, he said of the heat.
Family members and nurses were "literally standing over the patients, fanning them," he said.
The announcement, which could raise Louisiana's death toll to nearly 280, came as President Bush got his first up-close look at the destruction, and business owners were let back in to assess the damage and begin the slow process of starting over.
But elsewhere, encouraging signs of recovery were all around: Nearly two-thirds of southeastern Louisiana's water treatment plants were up and running. Louis Armstrong New Orleans International Airport planned to open to limited passenger service Tuesday. A plane carrying equipment to rebuild the city's mobile phone networks took off from Sweden. And 41 of 174 permanent pumps were in operation, on pace to help drain this still half-flooded city by Oct. 8.
However, Pitts also reports that late this afternoon a levy in Northeast New Orleans broke flooding some neighborhoods all over again.
In Washington, Federal Emergency Management Agency director Mike Brown "in the best interest of the agency and best interest of the president." Brown has been vilified for the government's slow and unfocused response to a disaster that is already being called the nation's costliest hurricane ever.