Inside the slow-motion disaster of Hurricane Katrina, 20 years later

Doomed New Orleans: Hurricane Katrina | National Geographic

Hurricane Katrina: Remembering the devastation 15 years later

Never before seen video shows moment levees were patched in New Orleans after Hurricane Katrina

Hurricane Katrina Aftermath: In the Shadow | Retro Report | The New York Times

20 years later, a look at Katrina's lasting impact and concerns over future storms