Louisiana : Army Corps of Engineers liable for catastrophic flooding during Katrina . New Orleans Mayor Ray Martin says he may ` ` open up the door '' for more suits . He calls the ` ` a surprise , '' says he expects feds to appeal . Plaintiffs awarded damages from Lower Ninth Parish and St. Bernard Parish .
Judge : Army Corps of Engineers liable for catastrophic flooding during Katrina . New Orleans Mayor Ray Nagin says ruling may `` open up the floodgates '' for more suits . Nagin calls decision `` a surprise , '' says he expects feds to appeal . Plaintiffs awarded damages from Lower Ninth Ward and St. Bernard Parish .