This week marks 20 years since Hurricane Katrina hit the Gulf area of Louisiana and Mississippi. Anderson shares the moment from our coverage in New Orleans that he's never forgotten. | Anderson Cooper 360

For many in New Orleans during Hurricane Katrina, evacuating wasn't an option. Trapped by rising floodwaters, their last resort for safety was the Louisiana Superdome. 20 years later, Saints legend Bobby Hebert tells us about the city’s "high ground." | The Weather Channel