"NEW ORLEANS — Nearly 10 years on, one might assume that the case of Hurricane Katrina is closed.

That the catastrophic flooding of this city was caused not merely by a powerful storm but primarily by fatal engineering flaws in the city’s flood protection system has been proved by experts, acknowledged by the United States Army Corps of Engineers and underscored by residents here to anyone who might suggest otherwise.

But the efforts to establish responsibility with ever more precision — to ascertain just how many of those flaws were due to engineering, politics or money — have not stopped."

Campbell Robertson and John Schwartz report for the New York Times May 23, 2015. [2]