President Bush ordered more than 7,000 active duty forces to the Gulf Coast on Saturday.
"There are people in apartments and hotels that you didn't know were there," Army Brig. Gen. Mark Graham said.
The overwhelming majority of those stranded in the post-Katrina chaos were those without the resources to escape — and, overwhelmingly, they were black.
"The first few days were a natural disaster. The last four days were a man-made disaster," said Phillip Holt, 51, who was rescued from his home Saturday