In January, the PBS series Nova broadcast a 12-minute segment that illustrates the nightmare scenario of a major hurricane hitting New Orleans: 50,000 dead, one million homeless, and a new lake where New Orleans used to be.
By my estimation, the water level would be high enough after a levee overflow to put this Bourbon Street webcam underwater -- even though it's 20 feet off the ground.
Sven Latham found more New Orleans bloggers in a latitude/longitude search of Blogwise, including one who feared being trapped there before neighbors offered a ride out:
There are about one-hundred thousand people in New Orleans with 'no place to go and no way to get there'. I'm one of those people.