http://www.salon.com/opinion/blumenthal/2005/08/31/disaster_preparation/index.html excerpt:
A year ago the U.S. Army Corps of Engineers proposed to study how New Orleans could be protected from a catastrophic hurricane, but the Bush administration ordered that the research not be undertaken. After a flood killed six people in 1995, Congress created the Southeast Louisiana Urban Flood Control Project, in which the Corps of Engineers strengthened and renovated levees and pumping stations. In early 2001, the Federal Emergency Management Agency issued a report stating that a hurricane striking New Orleans was one of the three most likely disasters in the U.S., including a terrorist attack on New York City. But by 2003 the federal funding for the flood control project essentially dried up as it was drained into the Iraq war. In 2004, the Bush administration cut funding requested by the New Orleans district of the U.S. Army Corps of Engineers for holding back the waters of Lake Pontchartrain by more than 80 percent. Additional cuts at the beginning of this year (for a total reduction in funding of 44.2 percent since 2001) forced the New Orleans district of the Corps to impose a hiring freeze. The Senate had debated adding funds for fixing New Orleans' levees, but it was too late.
The New Orleans Times-Picayune, which before the hurricane published a series on the federal funding problem, and whose presses are now underwater, reported online: "No one can say they didn't see it coming ... Now in the wake of one of the worst storms ever, serious questions are being asked about the lack of preparation."
The Bush administration's policy of turning over wetlands to developers almost certainly also contributed to the heightened level of the storm surge. In 1990, a federal task force began restoring lost wetlands surrounding New Orleans. Every two miles of wetland between the Crescent City and the Gulf reduces a surge by half a foot. Bush had promised "no net loss" of wetlands, a policy launched by his father's administration and bolstered by President Clinton. But he reversed his approach in 2003, unleashing the developers. The Army Corps of Engineers and the Environmental Protection Agency then announced they could no longer protect wetlands unless they were somehow related to interstate commerce.