I would wager that the above is NOT the whole story. More like--unnecessary funding was cut & the politicos in LA chose not to put any money toward flood control.
Anyway, that's what I hope happened.
That's what I heard happened a lot over the years -- they didn't use the money for the levees they had been getting but for pet projects.
"But the Bush administration cut New Orleans flood control funding by 44 percent to pay for the Iraq war."
One problem is that Louisiana would not allocate the matching funds required of ALL states accepting federal grants. This was money available for years.
Washington cannot do it all.