JOHN TIERNEY thinks a Katrina investigation might turn up some uncomfortable facts for the investigators:

Suppose, for instance, investigators try to find out who had the brilliant idea of putting the Federal Emergency Management Agency inside a new department with an organizational chart modeled on the Soviet Ministry of Agriculture and Food Economy. One Democrat, Hillary Clinton, did question whether FEMA would suffer, but the idea was originally championed by her colleagues, particularly Joe Lieberman.

Mr. Lieberman joined Mrs. Clinton this week in calling for a “re-examination” of FEMA’s status, but he was against independence before he was for it. After the Sept. 11 attacks, he helped lead the charge to create the Department of Homeland Security.

Republicans first resisted, as the Democratic National Committee pointed out during the presidential campaign last year. Its radio advertisement declared: “John Kerry fought to establish the Department of Homeland Security. George Bush opposed it for almost a year after 9/11.” . . .

A few outside skeptics may suggest letting this money be spent by mayors and governors in flood-prone areas who can lose their jobs if they earmark it for too many boondoggles and allow disasters to occur. But members of Congress would conclude that only they can be trusted to dispense the money. Of course, should there be another flood somewhere, they would be glad to investigate.

As I’ve said before, I don’t think Congress should be spared.