I lived in Nawlins back in the late '80s and there was something called the Lake Pontchartrain Foundation that was doing a Save the Lake campaign...research studies, back to the beach parties, etc. They got the state to ban shell dredging, which they said was causing the water to be murky and muddy. My question(s): Has this effort continued? Has it been successful? Is the lake any cleaner than before -- can you safely swim and fish in it? Did Katrina affect the lake environment? With all the problems caused by the flood, does anyone still talk about lake conservation?