President Bush says he takes "full responsibility" for what went wrong with the federal response to the disaster caused by Hurricane Katrina.
Speaking at the White House Tuesday, Mr. Bush said Katrina exposed serious problems in the response capability at all levels of government to disasters.
President Bush has seen his approval rating drop to its lowest point ever in several public opinion polls, amid widespread criticism of the federal government's initial response to the storm. Television images showed hundreds of New Orleans residents waiting for help on docks or rooftops for several days after Katrina hit.
Earlier, the White House said President Bush will address the nation from Louisiana late Thursday.
New Orleans' Louis Armstrong international airport plans to resume some commercial flights Tuesday.
Some information for this report provided by AP.