"He can snap in a minute," one aide explained.
The general himself talks of Katrina - which caused potentially thousands of fatalities, displaced an estimated 1 million people, and wrecked at least 140,000 homes - as an enemy. "It was a classic military attack," he says here at Camp Shelby, the US Northern Command forward headquarters in the Katrina effort. "He destroyed communications and moved barges across roads. He created shock and paralysis."