For education and discussion only. Not for commercial use. NEW ORLEANS (AP) -- Mr. Bill, the "Saturday Night Live" clay character from the 1970s whose misadventures usually left him squished, will be part of a campaign aimed at teaching people - especially children - how Louisiana is losing its coastal marshes and swamps. "I wish I had a quick three-word synopsis for it other than maybe Mr. Bill says 'Ohh, nooo!!! - the coastal erosion,'" said Walter Williams, Mr. Bill's creator and a native of New Orleans. The campaign will be launched next summer with Mr. Bill and a gang...