In Louisiana, residents are hoping a storm surge wall just east of New Orleans will keep any Gulf surge out of the city. WATCH THE FULL EPISODE OF 'WORLD NEWS TONIGHT': https://bit.ly/33obfsQ WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: http://abc.go.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://hulu.tv/33iKepm #WorldNewsTonight #Gulf Coast #HurricaneSally