I'm sorry, but your speculation is way off, you are jumping to very wrong conclusions. Take off the tinfoil, there is no conspiracy.
You claim to have 2 sources that storm surge in NOLA is 20'. Since almost all the tops of the levee walls are below 20', that would have meant massive overtopping of every levee bowl. In actuality, Lake Pontchartrain is at an 8' surge, nowhere close to 20'. Normal level for Lake P. is sea level, but the Miss. River is normally higher than that by NOLA, hence the locks at the west end of the industrial canal.
Take off the tinfoil, there is no conspiracy. You've just built a logical house of cards based on false information/conclusions.
Drop the tude, and we can discuss making confusing early reports and try to make sense of them.
Otherwise, shoo.
No time here for BS.
Sorry, that's just the way it is.