text:  The U.S. Army thinks it will make as much as 21 square miles, that's 54 square kilometers, of new land by 2070. But even with that land gain, coastal officials still predict there will be a net loss of land. It's part of Louisiana's 50-year, $50 billion coastal master plan to restore its disappearing coast and improve its hurricane protection. Because with more land lost, there's less in the way to slow incoming hurricanes, as Captain Hall explains.