Six months after Hurricane Katrina ravaged the Gulf Coast, we speak with two activists about what many call the worst natural disaster in U.S. history. Jordan Flaherty is an organizer with the New Orleans Network and an editor of Left Turn magazine; Kevin Powell is a journalist and author who is helping to launch Katrina On the Ground, an initiative which will bring student delegations from around the country to the Gulf Coast to work with local aid organizations. [includes rush transcript]