9K views · 105 reactions | Twenty years after the devastation of Hurricane Katrina, can the $14 billion surge barrier known as the "Great Wall of Louisiana" protect New Orleans from future flooding? CNN's Randi Kaye reports. | CNN International | Facebook

Two decades after Hurricane Katrina, Robin Roberts reflects on what it was like reporting from her hometown the morning after massive flooding hit the Gulf Coast. “Hurricane Katrina: 20 Years After the Storm with Robin Roberts" premieres tomorrow at 8/7c on ABC. Stream the next day on Disney and Hulu. | ABC News