A U.S. Congressional investigation into Hurricane Katrina blames failures at all levels of government for the suffering and loss of life that resulted from last August's storm.
U.S. news organizations have published parts of a draft of the final document that is to be presented Wenesday to Congress.
The report says the federal government's response to Katrina was marked by ineffectiveness and organizational paralysis. It also faulted local and state officials in Louisiana for delaying mandatory evacuations.
The report notes that problems first noted after the September 11 terrorist attacks - such as the inability of first responders to communicate with each - were again problems during the Katrina response.
Democrats, who wanted an independent probe, boycotted the investigation carried out by Republican members of the House of Representatives.
Some information for this report was provided by AP and Reuters.