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New Orleans was struggling with 25,000 derelict properties before Hurricane Katrina more than doubled that number. The inescapable blight citywide led to an unprecedented willingness to knock down buildings, and free-flowing FEMA money made it easier for many.

The demolitions were a key part of the rebuilding process after Katrina.

But they forced some hard decisions to be made when it came to public schools, public housing and the Charity system.

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