Hurricane Katrina, 20 years on: A look back at the devastation brought to New Orleans by storm

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

Katrina: 20 Years Later

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

Revisiting New Orleans neighborhood devastated by Katrina 20 years later

NBC News photojournalist reflects on covering Hurricane Katrina, 20 years later