Flood-ravaged and destroyed, the Lower Ninth Ward looked more like a war zone than a neighborhood in the days following Hurricane Katrina in 2005.

In the Lower 9th Ward, one man combed his neighborhood to save as many people as he could. WDSU reporter Shay O'Connor told the story of Robert Micheal Knight, who took matters into his own hands.

This week on Louisiana Considered, we mark 20 years since Hurricane Katrina with discussions about ecological restoration, ...