WASHINGTON (CNN) -- Defending the U.S. government's response to Hurricane Katrina, Homeland Security Secretary Michael Chertoff argued Saturday that government planners did not predict such a disaster ever could occur.
But in fact, government officials, scientists and journalists have warned of such a scenario for years.
Chertoff, fielding questions from reporters, said government officials did not expect both a powerful hurricane and a breach of levees that would flood the city of New Orleans. (See the video on a local paper's prophetic warning -- 3:30 )
"That 'perfect storm' of a combination of catastrophes exceeded the foresight of the planners, and maybe anybody's foresight," Chertoff said.
He called the disaster "breathtaking in its surprise."