"Vast Defenses Now Shielding New Orleans"
"NEW ORLEANS — Finally, there is a wall around this city. Nearly seven years after flood waters from Hurricane Katrina gushed over New Orleans, $14.5 billion worth of civil works designed to block such surges is now in place — a 133-mile chain of levees, flood walls, gates and pumps too vast to take in at once, except perhaps from space."