A decade on and Hurricane Katrina is still with us’ and Brad Pitt’s relief homes are rotting

Scott and Kimberly Roberts clung to each other in the attic of their clapboard home, praying the gale-force winds and rising flood water would not carry them away.

With shaking hands, they captured the moment they were hit by Hurricane Katrina – one of the fiercest storms in living memory – on a $20 camera they had bought just days before.