More than three million people were displaced by hurricanes Katrina, Rita, and Wilma. To its downfall, it fails to extensively cover some of the horrible things that occured in Mississippi and Alabama. "National Geographic - Inside Hurricane Katrina" is quite possibly the best comprehensive coverage of the devestation that unfolded out right now. A year later, many of them are still scattered throughout the country. Photograph by David Burnett 2 a.m.: Hurricane Katrina turns north toward the Louisiana coast, but the storm's strongest winds have diminished slightly to about 155 miles an hour (250 kilometers an hour).