[green iguana]

How does reinforcing levees on the Mississippi river prevent flood walls on the canals in New Orleans from rupturing and draining Lake Pontchartrain into the city? Not one levee on the river failed after this Cat 4 hurricane.

[River_Wrangler]

How does reinforcing levees on the Mississippi river prevent flood walls on the canals in New Orleans from rupturing and draining Lake Pontchartrain into the city? Not one levee on the river failed after this Cat 4 hurricane.

You make an excellent point. There are many facts that will eventually come to the attention of the segment of public that has an open mind.

As usual the truth lies somewhere between the rabid Bush bashers (MSM) and the redneck right.

Short term wisdom says if the levees that failed had of been stronger and taller the flooding would not have happened. True! (If my aunt had balls she would be my uncle.)

There is also some truth in the enviro side. The natural sediment agradation that prevents the marsh lands in the Delta from replenishing to provide 1st line protection is limited by the levees along the Mississippi River. This is a mechanism used by the Corp of Engineers to move the sediment out of the channel so shipping is not impeded.

As I state above, nothing difficult is ever easy. This is a complex situation.